Includes pre printed tabs for the following books:
- International Mechanical Code, 2021 edition
- International Fuel Gas Code, 2021 edition
- Code of Federal Regulations - 29 CFR Part 1926 (OSHA),
- Manual N - Commercial Load Calculation for Small Commercial Buildings, 5th Edition
- Manual D - Residential Duct Systems, 3rd Edition
- Manual J - Residential Load Calcs, reprinted, 8th Full Edition
- Modern Refrigeration and Air Conditioning, 22nd Edition