Plumbing license requirements vary by state. Compare apprentice, journeyman, master, and contractor tiers, hours, exams, and how to…
What the International Plumbing Code is, IPC vs UPC, which states use each, and how to find the…
Water heater code requirements explained: expansion tank, T&P valve and discharge, drip pan, seismic strapping, venting, and when…
Do you need a permit for plumbing work? When a permit is required vs not, typical $30 to…
Lead-free plumbing requirements explained: the federal 0.25% law, NSF/ANSI 61 and 372 marks, and which pipe, fittings, solder,…
Backflow testing requirements explained: who needs it, how often, what changed in 2026, and test costs of $30…