Massachusetts Class A Master Electrician • PSI • 90 Technical Questions • 50 Business and Law Questions • 70% Passing • Open Book
Ready to move from Journeyman Electrician to Master Electrician? This Massachusetts Master Electrician Contractor Exam Prep guide explains the official Class A licensing process, PSI examination requirements, advanced electrical topics, business and law preparation, approved reference materials, and study resources from Contractor Exam Preps.
Massachusetts issues the Class A Master Electrician license through the Board of State Examiners of Electricians, part of the Massachusetts Division of Occupational Licensure.
The Master Electrician credential represents an advanced level of professional qualification.
It is intended for experienced electricians who understand electrical systems, National Electrical Code requirements, Massachusetts amendments, technical calculations, project responsibilities, and the legal side of electrical contracting.
The Massachusetts Master Electrician licensing examination has two independent parts.
The first part is the Master Electrician Part I Technical Examination.
It includes 90 questions with a time limit of 240 minutes, or four hours.
Candidates must answer at least 63 questions correctly to achieve the required 70% passing score.
The second part is the Business and Law Examination.
This examination is also used for Massachusetts Systems Contractor applicants.
It includes 50 questions with a time limit of 120 minutes, or two hours.
Candidates must answer at least 35 questions correctly to pass.
Both examinations are administered by PSI Services LLC.
The two parts are scored separately, and both must be passed before the examination requirement is complete.
Unlike many contractor licensing examinations, Massachusetts Master Electrician tests are open book.
However, candidates must follow strict examination rules about reference books, permitted notes, tabs, calculators, and other testing-room materials.
The current PSI candidate bulletin, effective September 30, 2026, identifies approved references for both the technical and Business and Law examinations.
Those references include the National Electrical Code, NFPA 72, Massachusetts Electrical Code amendments, Board regulations, and several business and legal publications.
Not every publication may be used for every examination part.
For that reason, applicants should always review the official Massachusetts PSI examination bulletin before preparing their books.
Massachusetts adopted its 2026 NEC-based electrical code effective April 24, 2026.
The Massachusetts Electrical Code is found in 527 CMR 12.00.
Because examinations may be updated after a new code becomes enforceable, candidates should confirm the currently accepted NEC edition for their scheduled testing date.
Contractor Exam Preps offers the 2026 Massachusetts Master Electrician Super Combo.
This package includes a Massachusetts-focused Master Electrician Study Guide, an Electrician Calculations Study Guide, a 2026 NEC paperback with tabs, and Master Electrician flash cards.
These materials support technical preparation, electrical mathematics, code navigation, and repeated study.
For applicants who want calculations practice without the full Massachusetts Super Combo, Contractor Exam Preps also offers a 2026 Master Electrician and Electrician Calculations Study Guide Combo.
This general master-level package includes electrical study guides and a 2026 NEC reference.
It is useful for learning service calculations, conductor sizing, motors, transformers, grounding, bonding, and advanced electrical theory.
However, applicants must remember that the Business and Law examination requires separate preparation.
The Massachusetts Master Electrician technical examination contains 14 subject categories.
Wiring Methods and Devices is the largest single category, with 15 questions.
Services contains 11 questions.
Grounding and Bonding and Special Occupancies and Equipment each contain 10 questions.
Motors accounts for seven questions.
Advanced Electrical Knowledge and Theory, Overcurrent Protection, Alarm Systems, and Solar each contain six questions.
Other categories include State Specific Electrical Requirements, Transformers, Low-Voltage Distribution, Lighting, and Battery Storage.
The Business and Law examination contains 11 subject categories.
Massachusetts Licensing is the largest, with 16 questions.
Contracts contains six questions.
Environmental and Safety contains five questions.
Estimating and Bidding and Risk Management each contain four questions.
Financial Management, Tax Laws, Labor Laws, and Project Management each contain three questions.
Business Organization contains two questions, while Lien Law contains one.
These topics explain why becoming a Master Electrician is different from simply answering harder electrical questions.
A Master Electrician must understand advanced installation requirements and the business responsibilities connected with electrical work.
A candidate might know how to install a service perfectly but still need to study contracts, workers' compensation, labor rules, and licensing responsibilities.
Electrical contracting involves more than wires and breakers. There is paperwork, too, and unfortunately, the paperwork does not install itself!
Before qualifying for the Master Electrician examination, Massachusetts generally requires applicants to hold a Massachusetts Journeyman Electrician license.
Applicants must document at least one year of work experience as a Massachusetts Journeyman Electrician.
They must also complete 150 hours of Board-approved master-level electrical education.
The current candidate bulletin also requires documentation of a 15-hour Board-approved Code Update course.
Applicants submit their licensing application through the Massachusetts eLIPSE system.
After the Board approves the application, candidates may schedule their examinations with PSI.
The current PSI bulletin lists a technical examination fee of $80 and a Business and Law examination fee of $55.
Together, the two examination fees total $135, separate from any state application or license fees.
Candidates must prepare for both tests and understand the different reference materials and subject areas.
For Part I, focus on the NEC, Massachusetts amendments, electrical theory, wiring methods, grounding, bonding, services, motors, and modern electrical systems.
For Part II, focus on Massachusetts licensing requirements, estimating, bidding, lien laws, financial management, taxes, labor laws, project management, contracts, business organization, risk management, and safety.
Practice tests are helpful because they show whether you can apply the material within the examination time limits.
Four hours may sound generous until you encounter several calculation questions and lengthy code lookups.
Likewise, the Business and Law examination allows an average of only 2.4 minutes per question.
Studying in the same way you plan to test can make a major difference.
This guide includes Massachusetts licensing requirements, official examination tables, technical and business topic breakdowns, reference books, a distribution diagram, study strategies, a six-week preparation plan, Contractor Exam Preps products, an educational credential image, interactive FAQs, an embedded 1ExamPrep video, and additional licensing resources.
Important Massachusetts Master Electrician 2026 Update: The current PSI examination bulletin, effective September 30, 2026, lists a two-part, open-book Massachusetts Master Electrician examination. Part I contains 90 questions with 240 minutes allowed and requires 63 correct answers to pass. Part II Business and Law contains 50 questions with 120 minutes allowed and requires 35 correct answers to pass. Master Electrician applicants generally must hold a Massachusetts Journeyman Electrician license, document at least one year of qualifying journeyman experience, complete 150 hours of approved master-level education, and provide the required code-update documentation. Massachusetts adopted its 2026 NEC-based Electrical Code on April 24, 2026. Candidates must verify the latest PSI reference list and examination rules before testing.
A Massachusetts Master Electrician is an electrical professional holding the state's advanced Class A Master Electrician license.
The license represents a higher qualification than the Class B Journeyman Electrician credential.
Master Electricians are expected to understand advanced electrical code requirements, electrical theory, calculations, installation methods, safety, and the responsibilities connected with supervising electrical work.
They must also understand business and law principles that affect electrical contracting.
Those subjects include estimating, bidding, contracts, labor requirements, financial management, licensing, project management, and risk management.
This combination of technical and business knowledge is important because electrical contracting involves planning work, managing projects, and following applicable laws.
For example, a Master Electrician may be responsible for evaluating a service upgrade.
That work can involve calculating connected loads, selecting conductors, identifying overcurrent protection, reviewing grounding and bonding, and coordinating installation requirements.
At the same time, the project may involve permits, contracts, scheduling, labor costs, insurance, and compliance responsibilities.
Technical knowledge and business knowledge must work together.
Massachusetts regulates electrical licensing through the Board of State Examiners of Electricians.
Electrical business entities may have separate licensing requirements, including rules involving a Licensee of Record.
A personal Master Electrician license should not be treated as a replacement for every required business registration or permit.
Credential: Class A Master Electrician.
Licensing authority: Massachusetts Board of State Examiners of Electricians.
Technical examination: 90 questions.
Business and Law examination: 50 questions.
Additional business requirements: May apply to electrical contracting entities.
| Step | Requirement | What to Prepare |
|---|---|---|
| Credential | Class A Master Electrician | Confirm the correct Massachusetts license category. |
| State Board | Board of State Examiners of Electricians | Review official qualification rules. |
| Prior License | Massachusetts Journeyman Electrician | Provide your valid Class B license information. |
| Journeyman Experience | At Least One Year | Document qualifying work as a Massachusetts Journeyman Electrician. |
| Master-Level Education | 150 Hours | Complete a Board-approved master curriculum. |
| Code Update | 15 Hours | Provide the Board-approved code-update certificate required by the current bulletin. |
| Work Records | Required | Obtain acceptable employment certification. |
| School Records | Required | Gather education completion documentation. |
| CORI Authorization | Required | Follow the current application instructions. |
| Online Application | Massachusetts eLIPSE | Submit the appropriate Master Electrician application. |
| Application Approval | Required | Wait for Board approval before scheduling. |
| Testing Provider | PSI Services LLC | Schedule the approved examination parts. |
| Part I | 90 Questions | Prepare the technical electrical subjects. |
| Part I Time | 240 Minutes | Practice full four-hour technical examinations. |
| Part I Passing | 63 Correct Answers | Achieve at least 70%. |
| Part II | 50 Business and Law Questions | Study licensing, business management, laws, and contracts. |
| Part II Time | 120 Minutes | Practice a two-hour business examination. |
| Part II Passing | 35 Correct Answers | Achieve at least 70%. |
| Examination Format | Open Book | Use only references allowed for each exam part. |
| Technical Exam Fee | $80 Listed | Verify the current PSI amount. |
| Business and Law Fee | $55 Listed | Verify the current PSI amount. |
| Combined Exam Fees | $135 Listed | Budget separately for state application and license fees. |
| Both Parts Passed | Required | Complete final licensing steps. |
| License Issuance | Board Process | Pay the license fee and obtain the required license. |
| Electrical Business | Additional Rules May Apply | Review business entity and Licensee of Record requirements. |
| License Renewal | Required | Follow Massachusetts continuing education and renewal rules. |
The current PSI candidate bulletin lists the following examination requirements for Massachusetts Master Electrician licensing.
| Exam Detail | Category | Published Information |
|---|---|---|
| State | Licensing | Massachusetts |
| Official License | Board | Class A Master Electrician |
| Licensing Board | Authority | Board of State Examiners of Electricians |
| Exam Provider | Testing | PSI Services LLC |
| Current Bulletin Effective Date | PSI | September 30, 2026 |
| Number of Examination Parts | Testing | Two |
| Part I Name | Testing | Master Electrician Part I |
| Part I Questions | Testing | 90 |
| Part I Time | Testing | 240 Minutes |
| Part I Passing Percentage | Testing | 70% |
| Part I Passing Answers | Testing | 63 |
| Part I Categories | Blueprint | 14 |
| Part II Name | Testing | Business and Law |
| Part II Questions | Testing | 50 |
| Part II Time | Testing | 120 Minutes |
| Part II Passing Percentage | Testing | 70% |
| Part II Passing Answers | Testing | 35 |
| Part II Categories | Blueprint | 11 |
| Combined Questions | Testing | 140 |
| Combined Testing Time | Testing | 360 Minutes Across Both Parts |
| Examination Format | Testing | Open Book |
| Separate Scoring | Testing | Each Part Must Be Passed |
| Part I State-Specific Requirements | Blueprint | 4 Questions |
| Part I Advanced Theory | Blueprint | 6 Questions |
| Part I Services | Blueprint | 11 Questions |
| Part I Grounding and Bonding | Blueprint | 10 Questions |
| Part I Wiring Methods and Devices | Blueprint | 15 Questions |
| Part I Motors | Blueprint | 7 Questions |
| Part I Transformers | Blueprint | 1 Question |
| Part I Low-Voltage Distribution | Blueprint | 2 Questions |
| Part I Special Occupancies | Blueprint | 10 Questions |
| Part I Overcurrent Protection | Blueprint | 6 Questions |
| Part I Lighting | Blueprint | 2 Questions |
| Part I Alarm Systems | Blueprint | 6 Questions |
| Part I Solar | Blueprint | 6 Questions |
| Part I Battery Storage | Blueprint | 4 Questions |
| Part II Massachusetts Licensing | Blueprint | 16 Questions |
| Part II Estimating and Bidding | Blueprint | 4 Questions |
| Part II Lien Law | Blueprint | 1 Question |
| Part II Financial Management | Blueprint | 3 Questions |
| Part II Tax Laws | Blueprint | 3 Questions |
| Part II Labor Laws | Blueprint | 3 Questions |
| Part II Project Management | Blueprint | 3 Questions |
| Part II Contracts | Blueprint | 6 Questions |
| Part II Business Organization | Blueprint | 2 Questions |
| Part II Risk Management | Blueprint | 4 Questions |
| Part II Environmental and Safety | Blueprint | 5 Questions |
Technical examination: 90 questions, 240 minutes.
Business and Law: 50 questions, 120 minutes.
Passing: 70% on each independent part.
Current state code: 2026 NEC with Massachusetts amendments.
Approved references: Follow the current PSI bulletin.
The official Massachusetts Master Electrician examination outline has two parts. The technical examination contains 14 subject categories, and Business and Law contains 11.
Review Massachusetts Electrical Code amendments and state-specific rules that apply to electrical installations and professional responsibilities.
Study AC electrical theory, power, electrical mathematics, calculations, advanced circuits, testing, troubleshooting, and electrical instruments.
Review service conductors, service equipment, load calculations, service disconnects, grounding, bonding, service ratings, and overcurrent protection.
Study grounding electrode systems, equipment grounding conductors, bonding jumpers, effective ground-fault current paths, and NEC Article 250.
This is the largest technical category. Review conductors, raceways, cables, boxes, fittings, installation methods, conductor ampacity, raceway fill, box fill, devices, and wiring rules.
Practice motor full-load current, conductor sizing, overload protection, short-circuit protection, disconnecting means, controllers, and NEC Article 430.
Review transformer voltage and current relationships, rating calculations, conductor requirements, grounding, and protection.
Study low-voltage distribution equipment, circuit characteristics, and related installation concepts.
Review hazardous locations, health care facilities, special electrical equipment, emergency systems, temporary installations, swimming pools, and other specialized NEC requirements.
Study fuses, circuit breakers, conductor protection, device ratings, overcurrent calculations, and NEC Article 240.
Review luminaires, lighting circuits, controls, equipment ratings, and installation requirements.
Study fire alarm systems, signaling requirements, NFPA 72 concepts, circuit types, installation rules, and related safety provisions.
Review photovoltaic equipment, solar circuits, disconnects, overcurrent protection, labeling, and installation rules for renewable electrical systems.
Study energy storage systems, batteries, protective equipment, disconnecting methods, and modern electrical installation requirements.
This is the largest Business and Law category. Review Massachusetts electrical license classes, supervision, regulations, professional responsibilities, business licensing, and applicable laws.
Practice material estimates, labor estimates, bids, project costs, overhead, and the differences between a profitable job and an expensive lesson.
Review Massachusetts lien-law basics, including legal protections and procedures related to construction payment disputes.
Study bookkeeping, project budgets, cash flow, financial records, costs, and financial responsibility.
Review business tax responsibilities and applicable employer tax concepts.
Study wage requirements, overtime, employment responsibilities, workers' compensation, and related regulations.
Review planning, project scheduling, coordination, work sequencing, labor management, and jobsite organization.
Study contract provisions, agreements, change orders, scope of work, documentation, and dispute prevention.
Review common business structures, ownership responsibilities, and business operations.
Study insurance, liability, financial and operational risks, and methods for reducing exposure.
Review OSHA principles, workplace safety, hazardous conditions, environmental responsibilities, and safe construction operations.
Largest technical subject: Wiring Methods and Devices, 15 questions.
Other major technical subjects: Services, Grounding and Bonding, and Special Occupancies.
Largest Business and Law subject: Massachusetts Licensing, 16 questions.
Second-largest business topic: Contracts, six questions.
The best preparation starts with the official PSI content outline.
Do not study only electrical theory and assume the rest will take care of itself.
Massachusetts requires two different Master Electrician examinations.
Part I focuses on advanced electrical knowledge, while Part II focuses on business and law.
For Part I, begin with Wiring Methods and Devices.
This subject contains 15 questions, more than any other single technical category.
Review cables, conductors, raceways, equipment connections, installation conditions, and the NEC rules that apply to each.
Next, focus on Services, Grounding and Bonding, and Special Occupancies.
Together with Wiring Methods and Devices, these four subjects account for 46 of the 90 technical questions.
Practice electrical calculations involving service loads, conductor sizing, motors, transformers, and overcurrent protection.
Review advanced AC theory, voltage, current, resistance, power, power factor, and electrical circuit relationships.
Use the NEC to confirm the correct provisions and practice finding related tables and exceptions.
For Part II, start with Massachusetts Licensing.
This category contains 16 of the 50 Business and Law questions.
Review license classifications, supervision requirements, Board regulations, and electrical business rules.
Then study contracts, safety, estimating, bidding, financial management, tax laws, labor laws, project management, risk management, and lien law.
Practice sample questions without assuming that your field experience provides every business answer.
The Massachusetts Master Electrician Super Combo offers several types of technical study materials in one package.
The study guide helps organize electrical topics, the calculations guide supports mathematics, the tabbed NEC supports code navigation, and the flash cards reinforce key concepts.
For Business and Law, use the specific Massachusetts legal and business references identified by PSI.
During the final week, complete a 90-question technical simulation within four hours and a separate 50-question business simulation within two hours.
Technical priority: Wiring Methods, Services, Grounding and Bonding, Special Occupancies.
Calculation priority: Loads, conductors, motors, transformers, and electrical theory.
Business priority: Massachusetts Licensing and Contracts.
Final practice: 90 technical questions plus 50 Business and Law questions in separate timed sessions.
Master Electricians need to understand how services, feeders, panelboards, protective devices, motors, transformers, lighting, and grounding systems interact.
The simplified diagram below connects several technical topics in the Massachusetts Master Electrician examination.
Educational illustration only. Not an approved electrical installation or engineering design.
Confirm you have the appropriate Class B Journeyman Electrician credential.
Document at least one year of qualifying electrical work after obtaining the Massachusetts Journeyman license.
Complete 150 hours of Board-approved Master Electrician education.
Complete the 15-hour Board-approved Code Update requirement identified in the current candidate bulletin.
Upload qualifying work, education, and other required records through Massachusetts eLIPSE.
Review the NEC, Massachusetts amendments, advanced electrical calculations, licensing laws, contracts, estimating, and safety.
Earn 63 correct answers on Part I and 35 correct answers on Business and Law.
Finish the Board's license process and review electrical business entity requirements before operating a contracting company.
The following percentages show each topic's share of its respective examination part.
Technical examination: 90 questions across 14 categories.
Business and Law: 50 questions across 11 categories.
Four largest technical categories: 46 questions.
Largest business category: Massachusetts Licensing.
Passing: At least 70% separately on each examination.
Massachusetts Master Electrician examinations are open book, but the approved reference list differs between the technical and Business and Law parts.
Always follow the current PSI bulletin rather than assuming that any electrical or contractor reference is permitted.
| Reference | Exam Area | Purpose |
|---|---|---|
| National Electrical Code, NFPA 70 | Part I Technical | Electrical code requirements. Confirm the approved edition. |
| Massachusetts Electrical Code, 527 CMR 12.00 | Part I Technical | Massachusetts state amendments to the NEC. |
| NFPA 72, National Fire Alarm and Signaling Code | Part I Technical | Fire alarm and signaling code study. |
| NASCLA Contractor's Guide to Business, Law and Project Management, Basic 12th Edition | Part II Business and Law | Listed by the September 2026 PSI reference bulletin for contractor business study. |
| 237 CMR 12.00 Through 23.00 | Business and Law | Massachusetts electrical Board rules and regulations. |
| Massachusetts General Laws Chapter 141 | Business and Law | Electrical licensing and supervision laws. |
| Massachusetts General Laws Chapter 143, Selected Sections | Business and Law | Building inspection and related legal requirements. |
| Massachusetts General Laws Chapter 254, Selected Sections | Business and Law | Lien law. |
| Massachusetts General Laws Chapter 151, Selected Sections | Business and Law | Wage and overtime law. |
| Massachusetts General Laws Chapter 152, Selected Sections | Business and Law | Workers' compensation law. |
| Massachusetts State Unemployment Guidance | Business and Law | Employer and unemployment responsibilities. |
| OSHA Construction Standards, 29 CFR Part 1926 | Business and Law | Workplace safety and construction regulations. |
| 2026 Massachusetts Master Electrician Study Guide | Home Study | Massachusetts-focused technical exam preparation. |
| 2026 Electrician Calculations Study Guide | Home Study | Electrical mathematics and calculations practice. |
| 2026 NEC Paperback With Tabs | Home Study | Current-code education and reference navigation. |
| Master Electrician Flash Cards | Home Study | Repeated review of formulas and concepts. |
Important reference rule: The September 2026 PSI bulletin contains differing statements about handwritten notes. Its quick-reference section says they are not allowed, while its detailed examination-room section lists certain notes written before the exam. Confirm the current rule directly with PSI before bringing annotated references.
During the exam: Writing is restricted to PSI-provided scratch paper.
Study books: Do not assume commercial guides are permitted in the testing room.
Business exam: Prepare the separate legal and business publications.
Open-book examinations reward candidates who understand their references and can use them quickly.
Part I allows four hours for 90 technical questions.
Part II allows two hours for 50 Business and Law questions.
The exam is not designed around endless searching through books.
Instead, candidates must recognize the topic, choose the proper reference, apply the correct rule, and move forward.
For technical questions, learn the organization of the NEC.
Review definitions, service requirements, grounding and bonding, conductors, raceways, equipment, special occupancies, solar installations, and battery storage.
For Business and Law, learn how the Massachusetts legal references are organized.
Practice locating licensing rules, wage requirements, lien provisions, contract concepts, and OSHA requirements.
The Massachusetts Class A Master Electrician license represents advanced electrical qualifications and responsibilities.
Master-level work can involve electrical services, distribution systems, feeders, branch circuits, motor controls, transformers, lighting, special equipment, and complex electrical installations.
Master Electricians must understand how electrical equipment, protective devices, grounding, bonding, conductors, and connected loads work together.
They may also have professional responsibilities involving electrical supervision, project planning, compliance, and contracting.
Electrical work must follow the Massachusetts Electrical Code and applicable Board regulations.
Contracting work may involve additional requirements, including business licensing, permits, inspections, and the rules for electrical entities operating in the Commonwealth.
Massachusetts electrical business licenses are separate from individual electrician qualifications.
A company should confirm that it has the required business license and appropriate Licensee of Record before performing work that requires one.
Master Electricians should also stay familiar with applicable labor, safety, insurance, and contract requirements.
Electrical safety and legal compliance remain important after the examinations are passed.
Personal credential: Class A Master Electrician.
Electrical business: Separate requirements may apply.
Current state code: 527 CMR 12.00.
Professional regulations: 237 CMR and applicable Massachusetts laws.
| Classification | Authority | Main Difference |
|---|---|---|
| Electrical Apprentice | Massachusetts Licensing System | Supervised electrical training and experience. |
| Class B Journeyman Electrician | Massachusetts Electrical Board | Standard licensing route includes 600 education hours and 8,000 qualifying work hours. |
| Class A Master Electrician | Massachusetts Electrical Board | Requires Massachusetts Journeyman status, additional qualifying experience, and 150 master-level education hours. |
| Systems Technician | Massachusetts Electrical Board | Separate systems-related electrical credential. |
| Systems Contractor | Massachusetts Electrical Board | Separate contractor-level systems qualification. |
| Master Part I | PSI | 90 technical questions, 240 minutes, 70% passing. |
| Master Part II Business and Law | PSI | 50 questions, 120 minutes, 70% passing. |
| Electrical Business Entity | Massachusetts Electrical Board | Additional business license and Licensee of Record requirements may apply. |
Education and Experience
Two Open-Book Parts
Contractor-Level Responsibilities
This study schedule covers both the technical and Business and Law examinations. Adjust the amount of study time to your experience and examination date.
The Massachusetts Master Electrician examination can be challenging because it covers advanced technical subjects and contractor business responsibilities.
Part I contains 90 technical questions and lasts four hours.
Part II contains 50 Business and Law questions and lasts two hours.
The two examinations test different skills, but both require careful preparation.
The technical examination focuses on code requirements, electrical calculations, wiring methods, services, grounding, bonding, motors, and specialized systems.
Master-level candidates must recognize how the NEC applies to complex installation situations.
For example, a service calculation may require several steps involving load categories, demand factors, equipment ratings, and conductor requirements.
Motor and transformer questions may involve different rules for overload protection, conductors, and disconnecting equipment.
The Business and Law examination adds another challenge.
Electrical professionals who have spent years working in the field may not have studied estimating, lien law, taxes, or contracts in a classroom.
Those subjects are important because operating or supervising an electrical business involves both technical and legal decisions.
Massachusetts Licensing is especially important because it accounts for 16 Business and Law questions.
Open-book testing can help candidates use references, but the available time is limited.
Successful preparation should combine reading, realistic practice questions, reference navigation, and review of missed answers.
The Massachusetts Master Electrician Super Combo supports technical preparation with electrical study guides, calculations practice, and flash cards.
For Business and Law, applicants should review the official PSI legal reference list and practice business questions separately.
Study materials can help improve preparation, but they do not guarantee a passing result or licensing approval.
Contractor Exam Preps offers Massachusetts-focused Master Electrician study materials and additional master-level electrical books based on the 2026 NEC.
These resources support technical preparation, electrical mathematics, practice questions, flash cards, and codebook navigation.
The Massachusetts Business and Law examination requires separate review of the specific references and legal topics listed by PSI.
Massachusetts Study Guide, Calculations, NEC and Flash Cards
General Master-Level NEC and Math Preparation
Additional Study Guides and NEC Packages
Massachusetts-specific option: 2026 Master Electrician Super Combo.
Additional calculation option: General 2026 Master Electrician and Calculations Combo.
Retail study edition: 2026 NEC.
Business and Law: Study Massachusetts-specific legal references separately.
Availability: Check store product listings for current stock and package contents.
Actual Massachusetts Master Electrician Super Combo product photo hosted on ContractorExamPreps.com. The illustrated credential above is educational and is not a state-issued Master Electrician license.
This Massachusetts-themed educational credential features electrical equipment, a lightning bolt, and Master Electrician examination information.
The related product photo comes directly from Contractor Exam Preps and represents the Massachusetts Master Electrician Super Combo.
• Massachusetts Class A Master Electrician
• State Board of Examiners of Electricians
• Division of Occupational Licensure
• PSI Technical Examination
• 90 Technical Questions
• 240-Minute Technical Examination
• Business and Law Examination
• 50 Business Questions
• 120-Minute Business Examination
• 70% Passing on Both Parts
• Open-Book Testing
• Massachusetts Electrical Code
• 2026 NEC Study
• 527 CMR 12.00
• 237 CMR Electrical Regulations
• MGL Chapter 141
• Advanced Electrical Theory
• Electrical Calculations
• Services and Feeders
• Branch Circuits
• Grounding and Bonding
• Wiring Methods and Devices
• Conductor Ampacity
• Overcurrent Protection
• Motors and Transformers
• Low-Voltage Distribution
• Lighting Systems
• Fire Alarm Systems
• Solar Photovoltaic Systems
• Battery Energy Storage
• Special Occupancies
• NEC Code Navigation
• Electrical Safety
• Massachusetts Licensing
• Estimating and Bidding
• Construction Contracts
• Lien Laws
• Financial Management
• Tax Laws
• Labor Laws
• Project Management
• Business Organization
• Risk Management
• OSHA Safety
• 150 Master Education Hours
• One Year of Journeyman Experience
• 15-Hour Code Update
• Master Electrician Flash Cards
• Timed Practice Examinations
Massachusetts Master Electrician Licensing
Massachusetts issues the Class A Master Electrician license through the Board of State Examiners of Electricians.
The Massachusetts Board of State Examiners of Electricians, part of the Division of Occupational Licensure.
Yes. The standard Master Electrician qualification requires the applicant to hold a Massachusetts Journeyman Electrician license.
At least one year of qualifying work as a Massachusetts Journeyman Electrician under the standard pathway.
Massachusetts requires 150 hours of Board-approved Master Electrician education.
The current PSI application bulletin requires documentation of a 15-hour Board-approved Code Update course. Review current Board requirements before applying.
Yes. Applicants use Massachusetts eLIPSE to submit the licensing application and supporting documentation.
No. Class A is Master Electrician. Class B is Journeyman Electrician. They have different qualification and examination requirements.
Not necessarily. Electrical business entities must comply with applicable Massachusetts business licensing and Licensee of Record requirements.
Massachusetts Master Electrician PSI Examinations
PSI Services LLC administers the examination for the Massachusetts Board of State Examiners of Electricians.
It has two separate parts: the Master Electrician Technical examination and Business and Law.
The current September 2026 PSI bulletin lists 90 technical questions.
240 minutes, or four hours.
At least 63 correct answers out of 90, equivalent to 70%.
The Business and Law examination contains 50 questions.
120 minutes, or two hours.
At least 35 out of 50, equivalent to 70%.
Yes. Both parts are open book, with restrictions on permitted references and exam-room materials.
The current bulletin lists $80 for Part I and $55 for Business and Law, totaling $135 in examination fees. Verify current amounts at registration.
Electrical Code and Approved References
Massachusetts adopted its 2026 NEC-based Electrical Code effective April 24, 2026, with state amendments in 527 CMR 12.00.
Use the NEC edition approved by the current PSI bulletin and Board rules for your scheduled exam. Confirm reference eligibility before testing.
Yes. State Specific Electrical Requirements is an official category containing four questions.
Yes. Alarm Systems accounts for six technical questions, and NFPA 72 is listed among the technical reference materials.
The September 2026 PSI bulletin contains different statements about handwritten notes in separate sections. Confirm the current official rule directly with PSI before using an annotated reference.
Tabbed reference materials are listed as allowed under the current detailed PSI examination-room rules, subject to all current restrictions.
The bulletin allows certain nonprogrammable, nonprinting, silent battery-operated calculators without alphabet keys.
Technical Examination Topics
Wiring Methods and Devices, with 15 questions.
Services contains 11 questions in the current technical examination outline.
Yes. Grounding and Bonding contains 10 technical questions.
Yes. Motors contains seven questions and Transformers contains one question.
Yes. Solar has six technical questions and Battery Storage has four.
Yes. Special Occupancies and Equipment contains 10 questions, making it one of the largest technical subjects.
Business and Law Examination Topics
Massachusetts Licensing, with 16 of the 50 questions.
Contracts contains six questions in the Business and Law outline.
Yes. Estimating and Bidding contains four questions.
Yes. The Business and Law exam includes Tax Laws, Labor Laws, and Lien Law as separate categories.
The September 2026 bulletin lists the NASCLA Contractor's Guide to Business, Law and Project Management, Basic 12th Edition, along with applicable Massachusetts laws and regulations.
Contractor Exam Preps Products
Yes. Contractor Exam Preps offers a Massachusetts Master Electrician Super Combo based on the 2026 NEC.
It includes a Massachusetts Master Electrician Study Guide, Electrician Calculations Study Guide, 2026 NEC paperback with tabs, and Master Electrician flash cards.
Yes. The store offers an Electrician Calculations Study Guide in the Massachusetts Super Combo and a separate general Master Electrician Calculations Combo.
The verified listing focuses on technical study guides, calculations, NEC, tabs, and flash cards. Candidates should obtain the Business and Law references listed by PSI separately.
No. Study materials help candidates prepare, but examination performance and final licensing approval depend on the individual applicant and Massachusetts requirements.
Watch this related 1ExamPrep Master Electrician study video about examination preparation, NEC navigation, codebook organization, study schedules, reference materials, and common mistakes.
The video is a general Master Electrician preparation resource. Massachusetts applicants should also study the separate Business and Law examination and follow the official PSI examination requirements.
Video: 2026 Master Electrician Exam Prep License Study Guide.
Creator: 1ExamPrep.
Topics: NEC reference navigation, exam preparation, study habits, codebook organization, and test-day planning.
Massachusetts Part I: 90 questions, 240 minutes.
Massachusetts Part II: 50 questions, 120 minutes.
Passing: 70% on each part.
Reminder: Prepare Massachusetts-specific technical and Business and Law subjects separately.
Use the official Massachusetts and PSI resources for licensing and examination requirements. Use Contractor Exam Preps for related technical study materials and current-code education.
State: Massachusetts.
License: Class A Master Electrician.
Board: Board of State Examiners of Electricians.
Exam provider: PSI.
Technical examination: 90 questions, 240 minutes.
Business and Law: 50 questions, 120 minutes.
Passing: 70% separately on both parts.
Format: Open book, approved references only.
Experience: One qualifying year as a Massachusetts Journeyman Electrician.
Master education: 150 hours.
Code update: 15-hour certificate under the current bulletin.
Current electrical code: 2026 NEC with Massachusetts amendments.
Preparing for the Massachusetts Master Electrician examination is an important step for experienced electricians who want to earn the state's advanced Class A credential.
Massachusetts licenses Master Electricians through the Board of State Examiners of Electricians.
The Master Electrician license builds on journeyman-level electrical experience and requires additional education, technical knowledge, and understanding of contractor responsibilities.
Under the standard licensing pathway, applicants must hold a Massachusetts Journeyman Electrician license and document at least one year of qualifying work experience in that classification.
Applicants must also complete 150 hours of Board-approved Master Electrician education.
The current PSI examination bulletin requires documentation of a 15-hour Board-approved Code Update course.
Before scheduling the examinations, candidates must complete the Massachusetts application process and obtain the required approval.
PSI Services LLC administers the examination process.
The Massachusetts Master Electrician examination has two independent parts.
Part I is the technical examination.
It contains 90 questions and allows 240 minutes, or four hours.
Candidates must answer at least 63 questions correctly to achieve the required 70% passing score.
Part II is Business and Law.
It contains 50 questions and allows 120 minutes, or two hours.
Candidates must answer at least 35 questions correctly to pass.
Both parts are open book, but only approved reference materials may be brought into the examination room.
Massachusetts adopted an electrical code based on the 2026 National Electrical Code effective April 24, 2026.
The Massachusetts Electrical Code is contained in 527 CMR 12.00 and includes state-specific amendments.
Examination reference editions and material rules must be verified with PSI before testing.
This is especially important during a code transition, when older study materials may reference a previous NEC edition.
The Part I technical examination covers fourteen different subject categories.
Wiring Methods and Devices is the largest category with 15 questions.
Services contributes 11 questions, and Grounding and Bonding and Special Occupancies and Equipment each contribute 10 questions.
These major categories should receive a significant portion of the candidate's study time.
Other important subjects include advanced electrical theory, motors, transformers, low-voltage distribution, overcurrent protection, lighting, alarm systems, solar installations, battery storage, and Massachusetts-specific requirements.
Electrical calculations are an important part of technical preparation.
Candidates should practice service and feeder calculations, conductor sizing, overcurrent protection, motors, transformers, voltage drop, and related electrical mathematics.
Understanding the NEC is also essential.
An open-book examination requires knowing how to locate the relevant provisions efficiently and apply them correctly.
Part II Business and Law requires a different study approach.
Massachusetts Licensing is the largest category, containing 16 questions.
Contracts contributes six questions, and Environmental and Safety contributes five.
The examination also includes estimating and bidding, lien law, financial management, tax laws, labor laws, project management, business organization, and risk management.
These subjects reflect the responsibilities associated with electrical contracting and professional business operations.
Contractor Exam Preps offers the 2026 Massachusetts Master Electrician Super Combo.
This package includes a Massachusetts Master Electrician Study Guide, Electrician Calculations Study Guide, 2026 NEC paperback with tabs, and Master Electrician flash cards.
These materials help candidates study technical electrical subjects, practice calculations, and become familiar with NEC article organization.
The store also offers a General Master Electrician and Electrical Calculations Combo for additional mathematics and code study.
For Business and Law, candidates should separately prepare the publications and legal references identified in the official PSI examination bulletin.
A six-week study plan can help organize the preparation process.
Begin with advanced electrical theory and code navigation.
Continue with services, grounding, bonding, wiring methods, motors, and specialized electrical systems.
Then dedicate time to Massachusetts licensing, contracts, estimating, financial management, labor laws, and safety.
During the final week, complete separate timed practice examinations.
Use a four-hour timer for the 90-question technical examination and a two-hour timer for the 50-question Business and Law examination.
Review missed answers, identify weak areas, and repeat questions until the reasoning becomes clear.
After passing both parts, applicants must complete the Massachusetts licensing process before practicing as a licensed Master Electrician.
Electrical business entities may also need separate licensing, a qualified Licensee of Record, and compliance with other state and local requirements.
Becoming a Master Electrician involves more than passing an examination.
It requires electrical judgment, accurate calculations, safe installation practices, knowledge of legal responsibilities, and professional business management.
With consistent preparation, accurate Massachusetts licensing information, approved examination references, and useful Contractor Exam Preps resources, candidates can approach both parts of the Master Electrician examination with a stronger study foundation.
Find Massachusetts Master Electrician study guides, electrical calculations books, NEC codebooks, flash cards, and contractor examination preparation at ContractorExamPreps.com.
