PipePrep AI shows its receipts. Wage numbers come from government data, apprenticeship facts from official union and DOL resources, and the formulas in our tools from the standard trade references. Here is what backs what.
Wage and outlook figures cited on this site: median annual pay of $62,970 (May 2024), projected 4% employment growth 2024–2034, and roughly 44,000 job openings per year over the decade.
How registered apprenticeship works: earn-while-you-learn structure, wage progressions as a percentage of journeyman scale, and program registration.
Jobsite-safety concepts referenced in study content (trenching, confined spaces, hot-work).
The union representing plumbers, pipefitters, steamfitters, sprinkler fitters, and HVAC/R service techs; the trades and apprenticeship paths described across this site.
Our description of the GAN aptitude battery (six timed sections, ~140 questions in ~120 minutes, no calculator, ranked results) is assembled from applicant-facing materials that individual UA local training centers publish. Every local runs its own program — always verify section counts, cutoffs, and application windows with your local JATC.
The offset formulas used by the Pipe Offset Calculator in the PipePrep AI app (travel = offset × cosecant of the fitting angle; parallel-offset spread = spacing × tan(θ/2)).
Fitting take-out dimensions used in the app’s takeout and cut-length tools.
Hanger-spacing, drainage-fixture-unit, and gas-pipe-sizing values in the app’s code-reference tools. Study aids only — always follow the code edition and amendments adopted in your jurisdiction.
PipePrep AI is an independent study tool — not affiliated with, endorsed by, or connected to the United Association, any UA local or JATC, or GAN Human Resources. If you spot a claim on this site that needs a better source, email pipeprepai@gmail.com.