Plumbing is the most heavily licensed of the three trades, and the licence is the whole hiring decision. Apprentice, journeyman and master are different scopes of work with different supervision requirements, the hour requirements behind each differ by state, and reciprocity between states is patchy — a master licence from one state may be worth nothing across the line. That is why this form asks for the level, the number, the issuing state and the expiry date as four separate fields, and why the guidance is to verify on the state board portal rather than to trust a photograph of a card.
Most employment application templates in circulation are a liability. The typical one prints a date-of-birth box, a "are you a US citizen?" checkbox, a bare "have you ever been convicted of a crime?" line, and a background-check consent paragraph tucked in above the signature. Every one of those is a documented problem. The EEOC states plainly that most employers should not ask whether an applicant is a United States citizen before making an offer — the lawful question is whether they are authorized to work in the United States. The ADA prohibits any disability-related question or medical examination before a conditional offer, including questions that sound harmless like "have you ever filed a workers' compensation claim?" or "how many sick days did you take last year?". The ADEA does not flatly ban asking for a date of birth, but the EEOC closely scrutinises application forms that ask, and if you genuinely need it you can collect it after hire. Graduation years are the same problem wearing a different hat, which is why the education block here asks "completed?" and not "when?".
Then there is the background check, which is where the money actually gets lost. FCRA section 604(b)(2)(A)(i) requires that before you obtain a consumer report for employment purposes, you give the applicant a clear and conspicuous written disclosure "in a document that consists solely of the disclosure". Solely. Not the disclosure plus a liability waiver, not the disclosure plus an at-will acknowledgement, not the disclosure printed at the bottom of the application. That single word has produced class actions and eight-figure settlements against employers who thought a paragraph in the application was enough. So this builder exports the disclosure as its own page — a separate page in the PDF and Word file, a separate sheet in the Excel one — and it does the same for the voluntary self-identification sheet, which must be voluntary, confidential, and kept away from whoever makes the hiring decision. An MVR pulled through a consumer reporting agency is a consumer report too, so the driving block points at the same page rather than collecting consent inline.
Where the law genuinely varies, this form prompts instead of asserting. There is no federal private-sector ban-the-box rule — but most of the US population lives under a state or city one, and they differ on whether you may ask after the first interview, after a conditional offer, or not on the form at all. Salary history is banned in roughly twenty states and a long list of cities, lawful elsewhere, and at least one state pre-empts its own cities from banning it. Pre-employment drug testing is mandatory for CDL drivers in safety-sensitive roles under 49 CFR 382.301 and is state law for everyone else. So all three of those blocks are optional and switched off by default, each with a note naming the variation rather than a national claim we would have to be wrong about somewhere. Finally, keep what you collect: 29 CFR 1602.14 requires applications — including from people you did not hire — be preserved for one year from the hiring decision, and federal contractors get two years under 41 CFR 60-1.12, cut to one below 150 employees or a $150,000 contract.
The rest of the credential block reflects the way plumbing work is actually scoped. Backflow assembly tester certification is issued separately from the plumbing licence, often by the water purveyor rather than the state, and it renews on its own cycle — so it gets its own field rather than being lumped in with "certifications". Crawlspace and trench access, confined-space entry where trained, 75-pound lifts and extended kneeling are written into the essential-functions block, because the ADA question that sits above it is only meaningful when the applicant can see what they are being asked about. And if the role drives a company truck, the MVR consent lives with the FCRA page, not on the application.