Plumbing, Class I Contractor
North Carolina Administration Code and Policies, 2018 Edition
North Carolina Plumbing Code, 2018 Edition
North Carolina Fuel Gas Code, 2018 Edition
North Carolina Residential Code, 2018 Edition
North Carolina Board's Laws & Rules ‐ July 2020 or July 2021 Edition
North Carolina Business & Project Management for Contractors, 5th Edition
