Colorado Journeyworker Plumber • PSI • 100 Scored Questions • 240 Minutes
Prepare for the Colorado Journeyman Plumber Exam with an organized study plan covering plumbing codes, sanitary drainage, venting, water distribution, storm drainage, plumbing fixtures, water heaters, traps, backflow prevention, isometric drawings, and plumbing calculations.
Colorado officially uses the title Journeyworker Plumber. The word Journeyman remains common in search results, training programs, and plumbing exam prep materials. Both terms refer to the same individual license level.
The license is regulated by the Colorado State Plumbing Board, part of the Department of Regulatory Agencies, commonly called DORA.
The state licensing examination is administered by PSI. The official bulletin lists 100 scored questions and a 240-minute scored-exam time limit.
PSI may include up to 10 additional unscored questions, with up to 30 extra minutes provided for those questions.
The passing requirement is 70%, meaning candidates must answer at least 70 of the 100 scored questions correctly.
Colorado requires 6,800 hours of qualifying practical plumbing experience, usually described as four years of full-time work, to qualify for the Journeyworker license.
The examination uses the International Plumbing Code (IPC) and International Residential Code (IRC). The available detailed PSI bulletin lists the 2021 editions. A transition to 2024 code references is reported for November 1, 2026, so candidates testing during the changeover should confirm which books PSI will supply.
Here is the important reference rule: PSI provides the codebooks in the examination room. You cannot bring your own highlighted, tabbed, or marked copies.
Contractor Exam Preps offers the Colorado Journeyman Plumber Ultimate Exam Prep Package, which combines the 2021 IPC, a plumbing study guide, reference tabs for home study, and an online course with exam practice.
For a printed package, explore the Colorado Journeyman Plumber Exam Prep Package, containing the 2021 IPC, study tabs, and a Journeyman Plumber Study Guide with practice questions.
For additional independent practice, the Journeyman Plumber Exam Study Guide covers drainage, venting, fixtures, plumbing math, isometrics, and code review.
One more distinction matters. Journeyworker Plumber is an individual trade license. Colorado's Plumbing Contractor registration is a separate business requirement involving a responsible Master Plumber.
This guide walks through the examination, approved code references, state licensing path, study materials, practical preparation methods, and contractor business considerations.
Important Colorado Journeyworker licensing and code update: The official license is now called Journeyworker Plumber, although Journeyman remains a widely used term. The PSI exam includes 100 scored questions, a 240-minute scored-test limit, and a 70% passing requirement. PSI's detailed published reference list identifies the 2021 IPC and IRC. A transition to the 2024 editions has been reported for November 1, 2026, so verify your scheduled examination's codebooks directly with PSI. The testing center supplies the code references, meaning personal highlighted or tabbed books are not permitted. Journeyworker licensing is separate from registering a plumbing contracting business, which requires an appropriately licensed responsible Master Plumber.
A Colorado Journeyworker Plumber is a licensed plumbing professional who has completed the practical experience and examination requirements established by the Colorado State Plumbing Board.
The title Journeyman Plumber was used for many years. Colorado legislation changed the official terminology to Journeyworker Plumber effective July 1, 2025.
This change modernized the license name but did not turn it into a contractor business license.
Journeyworkers install, repair, maintain, and troubleshoot plumbing systems according to Colorado law and applicable plumbing codes.
Those systems may include water distribution, sanitary drainage, vent piping, plumbing fixtures, water heaters, storm drainage, and backflow prevention equipment.
Journeyworkers also interpret construction plans, identify approved pipe materials, calculate pipe sizes, and follow safety procedures.
For example, an experienced plumber might know how to install a bathroom group from years of fieldwork. The exam may go further and ask whether a particular vent arrangement meets a specific code section.
That is why code study and practical experience work best together.
Colorado requires 6,800 qualifying hours of plumbing experience for this license level. The Board reviews employment history and supporting verification according to its application rules.
Journeyworker Plumbers can also supervise plumbing apprentices within the limits established by state law.
However, becoming a Journeyworker does not automatically authorize someone to operate a plumbing contracting company.
Colorado has a separate Plumbing Contractor registration system. A plumbing contractor must meet business requirements and be associated with a properly licensed responsible Master Plumber.
For plumbers who hope to own their own company, Journeyworker licensing can be a major professional step while they continue building experience toward the Master Plumber level.
Official license: Colorado Journeyworker Plumber.
Common search term: Colorado Journeyman Plumber.
State authority: Colorado State Plumbing Board, DORA.
Experience: 6,800 qualifying practical hours.
Testing provider: PSI.
Business registration: Separate from the individual plumbing license.
Review the Colorado State Plumbing Board application information before beginning the licensing process.
Use these steps to organize your plumbing experience, exam preparation, and state license application.
| Step | Requirement | What to Verify |
|---|---|---|
| Choose License Level | Journeyworker Plumber | Confirm this is the correct license instead of Residential or Master Plumber. |
| Document Experience | 6,800 Hours | Collect qualifying practical plumbing experience records. |
| Verify Work History | Employer Documentation | Use the Board's required employment and experience verification process. |
| Check Training Credit | Approved Education | Determine whether qualifying education, apprenticeship, or military training may receive credit. |
| Review Licensing Instructions | DORA | Follow the current state application and examination instructions. |
| Choose Correct PSI Exam | Journeyworker Plumber | Avoid accidentally selecting Residential or Master Plumber. |
| Confirm Code Editions | IPC and IRC | Check the exact editions used on your exam date. |
| Study Exam Outline | 11 Categories | Focus on drainage, vents, water supply, storm drainage, and remaining subjects. |
| Practice Code Navigation | Unmarked References | Get comfortable using IPC and IRC books without tabs or highlights. |
| Register with PSI | Testing Appointment | Select the correct examination and follow the current scheduling rules. |
| Pass the Examination | 70 Correct | Complete 100 scored questions in 240 minutes. |
| Apply for License Issuance | DORA Review | Complete the required licensing application and documentation. |
| Plan Future Advancement | Master or Contractor | Review additional Master Plumber experience and separate contractor registration requirements. |
The current Colorado PSI Candidate Information Bulletin provides the scored question count, testing time, passing requirement, reference rules, and eleven subject categories.
| Exam Information | Authority | Details |
|---|---|---|
| Official Exam | Colorado | Journeyworker Plumber |
| Common Previous Name | Colorado | Journeyman Plumber |
| Licensing Board | DORA | Colorado State Plumbing Board |
| Testing Provider | PSI | Computer-based examination |
| Scored Questions | PSI | 100 |
| Scored Time Limit | PSI | 240 minutes |
| Passing Requirement | PSI | 70%, or 70 correct scored answers |
| Additional Pretest Items | PSI | Up to 10 unscored questions |
| Additional Time | PSI | Up to 30 minutes for pretest items |
| Exam References | PSI | IPC and IRC supplied at the center |
| Published Detailed IPC Reference | PSI | 2021 International Plumbing Code |
| Published Detailed IRC Reference | PSI | 2021 International Residential Code |
| Reported Code Transition | 2026 Preparation Guidance | 2024 IPC and IRC from November 1, 2026; verify with PSI |
| Personal Highlighted Books | PSI | Not permitted |
| Personal Tabs and Notes | PSI | Not permitted |
| Sanitary Drainage | PSI | 20 questions |
| Vents | PSI | 18 questions |
| Water Supply | PSI | 15 questions |
| Storm Drainage | PSI | 10 questions |
| Fixtures and Equipment | PSI | 8 questions |
| Water Heaters | PSI | 7 questions |
| General Regulations | PSI | 5 questions |
| Traps and Interceptors | PSI | 5 questions |
| Indirect and Special Waste | PSI | 5 questions |
| Isometric Analysis | PSI | 5 questions |
| Residential Fire Sprinklers | PSI | 2 questions |
| Practical Experience | Colorado | 6,800 qualifying hours |
| Exam Fee | PSI Bulletin | $78 listed; confirm current fee |
| Retest Fee | PSI Bulletin | $73 listed; confirm current fee |
Colorado Journeyworker exam: 100 scored questions and 240 minutes.
Passing: 70 correct scored answers.
Optional pretest: Up to ten unscored questions with additional time.
Reference rule: PSI supplies the books. Study with unmarked copies so exam-day navigation feels familiar.
Code-cycle caution: Confirm the 2021-to-2024 changeover directly with PSI.
The Colorado Journeyworker examination covers eleven subject categories. The official question counts reveal which subjects deserve the most study time.
Sanitary Drainage Systems contains 20 questions, making it the largest subject. Study drainage fixture units, pipe sizing, cleanouts, building sewers, drainage slopes, approved fittings, and testing procedures.
Vents contains 18 questions. Review wet venting, common vents, circuit vents, trap arm lengths, vent sizing, vent terminals, and prohibited vent arrangements.
Water Supply includes 15 questions. Study water distribution sizing, supply fixture units, pressure, flow, valves, materials, hot-water distribution, and backflow protection.
Storm Drainage Systems contains ten questions. Review roof drains, rainfall data, storm piping, horizontal conductors, overflow drainage, and scuppers.
These four categories total 63 questions, representing 63% of the scored examination.
Fixtures and Equipment contains eight questions. Study minimum fixture requirements, clearances, equipment connections, and proper installation.
Water Heaters contains seven questions, including installation requirements, safety valves, temperature protection, and piping connections.
General Regulations contains five questions covering definitions, code administration, and basic requirements.
Traps, Interceptors, and Separators contains five questions. Review trap seals, trap arms, grease interceptors, and other separation equipment.
Indirect and Special Waste Piping also includes five questions. Understand air gaps, indirect waste receptors, and specialized drainage requirements.
Isometric Analysis contains five questions. Learn to read three-dimensional plumbing drawings and follow supply, waste, and vent connections.
Residential Fire Sprinklers contains two questions.
The best study approach begins with drainage, vents, and water supply while still covering the remaining subjects. Do not ignore an exam category just because it has fewer questions. Every correct answer helps.
Start by reading the current PSI bulletin and checking the exact code editions for your exam date.
Then divide your study time according to the official exam outline. Drainage, venting, water supply, and storm drainage should receive the greatest attention.
Sanitary Drainage: Practice drainage fixture unit calculations, cleanout placement, pipe slopes, and drain sizing.
Vents: Study individual, common, wet, and circuit venting arrangements.
Water Supply: Review distribution sizing, water pressure, valves, fixture-unit tables, and backflow prevention.
Storm Drainage: Study roof drains, rainfall calculations, overflow requirements, and piping sizes.
Plumbing Fixtures: Review required clearances, installations, and fixture connections.
Water Heaters: Learn safety requirements, relief devices, and piping connections.
Traps and Interceptors: Study trap seals, prohibited configurations, and separation systems.
Isometrics: Practice reading three-dimensional drain, waste, and vent layouts.
Plumbing Math: Work through pipe sizing, slope, volume, and pressure problems.
Code Navigation: Use unmarked books so you can find tables and sections without personal tabs.
Practice questions should teach you where to find the answer, not simply encourage memorizing it.
The Colorado Journeyman Plumber Ultimate Exam Prep Package includes a study guide, codebook, video-based course, and simulated computer testing.
Its included tabs are useful for home study, but they cannot accompany you into Colorado's PSI testing room.
Colorado's Journeyworker exam includes plumbing systems and isometric analysis. Learning how fixtures, waste lines, vents, and supply piping fit together can make code questions easier to understand.
Simplified plumbing diagram for studying. Not a code-approved construction drawing.
Use these eight practical steps to organize your Journeyworker plumbing license preparation.
Make sure you are preparing for Colorado's statewide Journeyworker Plumber examination and not a separate local ICC test.
Gather evidence of 6,800 qualifying practical plumbing hours, including employer verification.
Review DORA's experience, examination, and license issuance instructions.
Find out which code editions PSI will supply on the date of your examination.
Prioritize drainage, vents, water supply, and storm drainage while reviewing smaller categories.
Complete 100-question practice tests with a four-hour timer and unmarked references.
Bring the required identification and follow the testing center's reference and security rules.
Follow the Board's licensing process, maintain your credential, and review Master Plumber requirements if business ownership is your goal.
The eleven official subjects total 100 scored questions, making the question count and percentage directly comparable.
Total: 100 scored questions.
Top three categories: Sanitary Drainage, Vents, and Water Supply.
Top three combined: 53 questions, or 53%.
Top four combined: 63 questions, or 63%.
Important: All eleven subjects contribute toward the passing score.
The Colorado PSI exam uses the International Plumbing Code and International Residential Code. PSI supplies the actual testing-center reference books.
Contractor Exam Preps offers several 2021 IPC-based products useful for studying the chapters and practicing plumbing calculations.
| Study Resource | Edition or Format | Purpose |
|---|---|---|
| International Plumbing Code | 2021 IPC | Drainage, vents, supply, fixtures, traps, and storm systems. |
| International Residential Code | 2021 IRC | Residential plumbing requirements and related systems. |
| International Plumbing Code | 2024 IPC | Study for the reported next examination code cycle, after verifying it applies. |
| International Residential Code | 2024 IRC | Residential reference for the reported future code cycle. |
| Colorado Journeyman Plumber Exam Prep Package | 2021 IPC | IPC, tabs for home study, and Journeyman Plumber Study Guide. |
| Colorado Journeyman Ultimate Package | 2021 IPC | Printed guide, codebook, tabs, videos, and online examination practice. |
| Journeyman Plumber Exam Study Guide | 2021 IPC-Based | 750 practice questions with answer keys, math, isometrics, and code review. |
| Journeyman Plumber Test Success Course | Online | Video lessons, reference study, and simulated computer exams. |
| Plumbing Math and Isometrics Review | Included Study Topics | Plumbing calculations and piping diagram practice. |
| International Fuel Gas Code | Supplemental Study | Included in some preparation topics, but not listed as a supplied reference in the Colorado statewide PSI plumbing bulletin. |
Exam books: PSI supplies IPC and IRC references.
Home study: Codebooks, tabs, guides, and online lessons can help you prepare.
Exam day: Do not bring personal codebooks, tabs, or notes.
Edition transition: Check the current PSI bulletin before selecting 2021 or 2024 study materials.
The Colorado Journeyworker exam is reference-assisted, but the rules differ from open-book contractor examinations where candidates bring their own tabbed manuals.
PSI provides the plumbing references during testing, so practice using clean books that do not contain your own highlights or tabs.
Clean-book method: Locate answers by chapter, section, table, and index.
Time management: 240 minutes divided by 100 scored questions averages 2.4 minutes per question.
Formulas: PSI advises candidates to know commonly used plumbing theory formulas.
Study tabs: Useful at home, but not permitted in the state testing room.
A Colorado Journeyworker Plumber can perform plumbing work within the scope of the state plumbing license and applicable laws.
The work may involve installing water supply piping, drainage systems, vents, fixtures, valves, water heaters, and other regulated plumbing components.
Journeyworkers are expected to understand plumbing methods, code rules, approved materials, and system testing.
They may work on residential, commercial, and other qualifying plumbing projects within their authorized scope.
Because plumbing protects water quality and sanitation, correct installation is particularly important.
An incorrectly installed vent can affect drainage performance. Poorly sized water distribution can create pressure and flow problems. Missing backflow protection can create health risks.
Licensed Journeyworkers need to understand these problems before they occur.
Colorado law also permits licensed plumbers to supervise plumbing apprentices within prescribed limits.
The supervising plumber remains responsible for the apprentice's work.
For a Journeyworker, the license shows advanced practical competence. It does not mean the worker is a registered plumbing contracting company.
If someone wants to start a plumbing business, Colorado's plumbing contractor registration rules must also be considered.
A registered plumbing contractor is required to have an appropriately licensed responsible Master Plumber.
The Journeyworker credential can help professionals build the skills and experience they may later use when applying for the Master Plumber license.
Master applicants generally need 8,500 qualifying practical hours, compared with 6,800 for Journeyworker licensing.
Some municipalities also have local registration or permit rules, so check the requirements for the area where the work will take place.
Individual license: Journeyworker Plumber.
Work: Authorized plumbing installation, maintenance, and repair.
Apprentices: Supervision is subject to Colorado limits and responsibilities.
Business operations: Separate plumbing contractor registration and Master Plumber requirements.
| License or Status | Authority | Main Requirement or Purpose |
|---|---|---|
| Plumbing Apprentice | Colorado State Plumbing Board | Registration and supervised practical plumbing training. |
| Residential Plumber | Colorado DORA | 3,400 qualifying practical hours and the residential examination. |
| Journeyworker Plumber | Colorado DORA | 6,800 qualifying hours and the Journeyworker examination. |
| Master Plumber | Colorado DORA | 8,500 qualifying practical hours and the Master examination. |
| Plumbing Contractor Registration | Colorado State Plumbing Board | Business registration with an appropriately licensed responsible Master Plumber. |
| Journeyworker PSI Examination | PSI | 100 scored questions, 240 minutes, 70 correct to pass. |
| Master PSI Examination | PSI | 120 scored questions, 270 minutes, 84 correct to pass under the published PSI outline. |
| ICC Journeyman Plumber with Gas | ICC / Participating Local Jurisdictions | Different examination used for certain local credentials, not a substitute for the state PSI Journeyworker exam. |
Journeyworker: An individual plumbing license.
Master Plumber: Higher individual license qualification.
Contractor: A separately registered plumbing business.
Important: Choose the exam that matches your exact state or municipal licensing application.
6,800 Practical Plumbing Hours
100 Questions • 240 Minutes
DORA License Issuance
Journeyworker experience: 6,800 qualifying practical hours.
Exam requirement: Pass the PSI Journeyworker examination.
Licensing: Passing the exam does not automatically issue a Colorado license.
Business registration: A separate contractor registration involves a responsible Master Plumber.
Use these six weeks to focus on the most heavily tested subjects, code navigation, plumbing math, and exam timing.
The Colorado Journeyworker Plumber examination can be challenging because it tests more than everyday plumbing experience.
Applicants must understand how to apply plumbing codes, size piping, identify correct installation methods, and analyze plumbing drawings.
The examination contains 100 scored questions and allows 240 minutes.
The passing requirement is 70 correct scored answers.
The first major challenge is drainage. Sanitary Drainage Systems represents 20% of the test, and questions may involve fixture units, pipe sizes, cleanouts, slopes, or building drains.
Vents represent another 18%. Candidates must understand proper vent sizing and arrangements.
Water Supply adds 15%, and Storm Drainage contributes 10%.
Combined, those four subjects account for 63% of the examination.
Another challenge is using the codebooks efficiently. Colorado PSI supplies unmarked IPC and IRC references.
You cannot rely on the familiar tabs or highlighted pages in your personal study book.
That means practicing reference navigation without extra markings is important.
Plumbing math can also be difficult for candidates who have not worked through written calculations in a while.
Learn to recognize when a question requires a table, a formula, or a specific code exception.
Isometric drawings deserve practice too. They may show pipes moving through different floors or changing direction around fixtures.
The key is to follow each branch carefully rather than guessing from the picture.
Use repeated practice sessions to improve accuracy and speed.
If you miss a question, find the actual code rule and understand why it applies.
With enough practice, you should spend less time wondering where to look and more time answering confidently.
A plumbing system should not be a mystery, and your exam preparation should not feel like searching for a fitting in a toolbox with no compartments.
PSI arrival: At least 30 minutes before your appointment.
Identification: Follow PSI's current photo identification requirements.
Testing references: Provided by PSI.
Scored exam: 100 questions in 240 minutes.
Results: Follow the score-report and state licensing instructions.
Contractor Exam Preps offers Colorado-specific Journeyman plumbing study materials as well as a broader selection of IPC-based plumbing guides.
These products are useful for studying at home. Their included reference tabs cannot be used in the actual Colorado PSI exam room.
Complete Colorado Study and Online Training
Printed Codebook and Study Guide
Practice Questions and Trade Review
Another full package: The Journeyman Plumber Ultimate Exam Prep Package is a general plumbing preparation option that includes an IPC reference and online learning.
Additional printed books: The Journeyman Plumber Exam Prep Package provides another codebook-and-study-guide option.
Important: The Colorado statewide exam uses PSI-supplied references, even when a retailer's package includes tabs.
Before buying: Check current code editions, product contents, shipping, pricing, and availability.
This Colorado-specific credential-style image features the state outline, Rocky Mountain imagery, pipe wrench, water supply piping, drainage and vent systems, and plumbing equipment.
The illustration represents Journeyworker Plumber examination preparation. It is not an official Colorado plumbing license card.
• Colorado State Plumbing Board
• Colorado DORA Licensing
• Journeyworker Plumber License
• Journeyman Plumber Exam Prep
• PSI Computer Examination
• 100 Scored Questions
• 240-Minute Examination
• 70% Passing Requirement
• 6,800 Experience Hours
• International Plumbing Code
• International Residential Code
• Sanitary Drainage
• Waste and Vent Systems
• Water Supply Distribution
• Storm Drainage
• Plumbing Fixtures
• Water Heater Installations
• Traps and Interceptors
• Isometric Drawings
• Plumbing Calculations
• Backflow Prevention
• PSI-Supplied Codebooks
• Contractor Registration Distinction
Learn the plumbing code, practice calculations, and build the reference skills needed for the official Colorado Journeyworker examination.
Colorado Journeyman and Journeyworker Licensing
The official current name is Journeyworker Plumber. Journeyman Plumber remains a commonly used term for the same license level.
The Colorado State Plumbing Board, part of DORA.
Colorado requires 6,800 qualifying practical plumbing hours for Journeyworker licensing.
Approved training or education may qualify for experience credit under applicable Board rules. The Board evaluates each applicant's documentation.
Applicants must follow DORA's experience verification rules, including employer documentation where required. Do not assume unsupported self-verification is sufficient.
No. Journeyworker is an individual license. Plumbing contracting businesses must satisfy separate registration requirements involving a responsible Master Plumber.
Colorado PSI Examination Format
PSI administers the statewide Journeyworker Plumber examination.
The Colorado Journeyworker Plumber exam contains 100 scored questions.
The scored portion allows 240 minutes, or four hours.
The PSI Candidate Information Bulletin specifies 70%, meaning 70 correct answers among 100 scored questions.
PSI may include up to ten unscored pretest questions with up to 30 additional minutes.
Yes. PSI provides computer-based testing for Colorado plumbing examinations.
Codebook Rules and Code Editions
The exam is reference-assisted. PSI supplies the approved IPC and IRC codebooks in the testing room.
No. The current PSI rules specify that the codebooks are provided by the test center and personal references are not permitted.
No. Highlighting and tabs may help with home study, but personal books are not allowed in the testing room. Candidates also cannot mark the supplied codebooks.
The detailed reference section currently available lists the 2021 International Plumbing Code and 2021 International Residential Code.
Current 2026 preparation guidance reports a transition beginning November 1, 2026. Confirm the actual codebook editions and any transition arrangements directly with PSI before purchasing materials.
No. PSI advises candidates to know common plumbing theory formulas. Unauthorized personal formula sheets are not allowed.
Official Examination Topics
Sanitary Drainage Systems, with 20 scored questions.
Vents account for 18 scored questions.
Water Supply accounts for 15 scored questions.
Yes. Storm Drainage Systems accounts for ten scored questions.
Yes. Isometric Analysis contains five scored questions.
Yes. Water Heaters accounts for seven scored questions.
Yes. The official Journeyworker outline includes two questions on Residential Fire Sprinklers.
Sanitary Drainage, Vents, Water Supply, and Storm Drainage. Together, they account for 63 scored questions.
Contractor Registration and Career Advancement
No. Plumbing Contractor registration is separate and requires compliance with rules involving a responsible Master Plumber.
The Master Plumber qualification involves 8,500 qualifying practical plumbing hours.
Yes, subject to Colorado's supervision limits and responsibility rules.
No. Local ICC credentials may involve different exam formats and jurisdiction rules. Confirm the exact test required by your licensing authority.
Contractor Exam Preps Materials
Yes. The store offers a Colorado Journeyman Plumber Exam Prep Package and a Colorado Journeyman Plumber Ultimate Exam Prep Package.
It includes the 2021 IPC, tabs for study, a Journeyman Plumber Study Guide, and an online course with videos and simulated examinations.
The listed study guide includes 750 practice questions with answer keys.
Yes. The study guide includes plumbing math review and isometric analysis.
No. Tabs are for home learning and reference practice. PSI supplies the codebooks used in the state testing room.
No. Study resources do not guarantee a passing examination result or approval for a Colorado plumbing license.
This related 1 Exam Prep plumbing video introduces International Plumbing Code study and its practical use during licensing examination preparation.
It can help Colorado Journeyworker candidates become familiar with code organization, chapter structure, and reference navigation while preparing for their official PSI examination.
Remember that the Colorado test uses PSI-supplied codebooks. The video is a study aid, not a replacement for the official examination bulletin.
Video topic: International Plumbing Code overview and exam study.
Channel: 1 Exam Prep.
Useful for: Codebook organization, IPC subject review, and plumbing exam preparation.
Colorado reminder: Follow PSI's current approved code editions and testing-center reference rules.
Watch the International Plumbing Code Study Video on YouTube
Use Contractor Exam Preps for plumbing study packages, practice questions, code reference materials, and related preparation. Use Colorado DORA and PSI for the official licensing and examination requirements.
Official credential: Colorado Journeyworker Plumber.
State PSI examination: 100 scored questions, 240 minutes, 70 correct to pass.
Code references: PSI supplies approved IPC and IRC books.
Home study materials: Confirm the code edition before purchasing.
Contractor registration: Separate from an individual's Journeyworker Plumber license.
Prepare for the Colorado Journeyworker Plumber examination with stronger knowledge of sanitary drainage, water supply, venting, storm drainage, plumbing fixtures, water heaters, traps, and isometric drawings.
The official PSI examination contains 100 scored questions and allows 240 minutes.
Candidates need at least 70 correct scored answers to meet the published 70% passing standard.
The four largest categories are Sanitary Drainage, Vents, Water Supply, and Storm Drainage.
Together, they account for 63% of the scored examination.
Give those subjects extra attention, but remember that fixtures, water heaters, isometric analysis, traps, and other plumbing topics are also tested.
Practice using the appropriate International Plumbing Code and International Residential Code editions.
PSI supplies the codebooks at the testing center, so become comfortable finding answers without personal highlights, tabs, or written notes.
Contractor Exam Preps offers the Colorado Journeyman Plumber Ultimate Exam Prep Package, including a codebook, study guide, practice questions, and online learning.
A simpler Colorado Journeyman Plumber Exam Prep Package is also available for printed study.
Beyond testing, applicants must document 6,800 qualifying practical plumbing hours and complete the Colorado State Plumbing Board's licensing process.
If you plan to operate a plumbing company, remember that Journeyworker licensure is different from Plumbing Contractor registration, which involves a responsible Master Plumber.
Build confidence through regular study, timed practice, accurate plumbing calculations, and careful review of every missed question.
Good preparation is about knowing the rules, understanding plumbing systems, and finding the correct answer before the clock runs out.
Find more plumbing license and contractor examination preparation at ContractorExamPreps.com.
