How to Verify Plumber Work Hours in Idaho

Why Hour Verification Matters More Than You Think

You can have 10,000 hours of hands-on plumbing experience, but if you can't prove them on paper in the format Idaho demands, those hours don't exist as far as DOPL is concerned. The Work Verification Form is the gate between your apprenticeship and your journeyman license application, and it's where the licensing process breaks down for a surprising number of experienced plumbers.

The problem isn't the form itself — it's that the form requires cooperation from people who may not be available, willing, or easy to find by the time you need their signature.

What the Form Requires

Idaho uses a standard Plumbing Work Verification Form that must be completed separately for each employer where you gained qualifying experience. Each form requires:

• Employment dates: Exact start and end dates for your time at that employer
• Total hours worked: The cumulative hours of plumbing installation work performed
• Supervising journeyman's signature: The licensed journeyman who directly supervised your work must sign the form and include their active license number
• Notarization: The form must be notarized — a supervisor's signature alone isn't sufficient

If you worked for three different contractors during your apprenticeship, you need three separate verification forms, each signed by the journeyman who supervised you at that specific shop, each notarized.

What Counts and What Doesn't

DOPL's electronic system (OASIS) categorizes experience into "on-site hours" and "responsible charge hours," and distinguishes between commercial and residential installations using "system facility" classifications. When your supervising journeyman fills out the verification form, the hours need to reflect actual plumbing installation work.

Work that does not count toward standard journeyman requirements:

• Pipe fitting
• Lawn sprinkler installation
• Appliance specialty work
• Water pump installation
• Any hours worked when your apprentice registration was inactive

That last exclusion is absolute. If your registration lapsed for even a day, every hour worked during the lapse is permanently excluded from your qualifying total.

When Former Employers Won't Cooperate

This is the most common verification problem, and it has no quick fix. Former employers go out of business. Supervising journeymen retire, move out of state, or simply refuse to fill out the paperwork. Sometimes the relationship ended badly and the former boss has no interest in helping.

A few approaches that can help:

Start verification during employment, not after. The single best thing you can do is get each verification form completed and notarized while you're still employed at each shop. Don't wait until you need it for your journeyman application.

Keep your own records. Maintain an independent work-hour log with dates, hours, project types, addresses, and the supervising journeyman's name and license number. This won't replace the official verification form, but it gives you the raw data to reconstruct documentation if needed.

Contact DOPL's trade licensing staff. If a former employer refuses to cooperate or can't be located, reach out to [email protected]. DOPL staff can advise on alternative documentation options. These might include tax records (W-2s or 1099s showing employment dates and income), pay stubs, or other employment records that corroborate your claimed hours.

Try the supervising journeyman directly. Even if the employer is gone, the journeyman who supervised you may still be reachable. The form requires the journeyman's signature — not the business owner's. If the journeyman is willing and still holds an active license (or can reference their former license number), they can sign the verification independently of the employer.

Out-of-State Hour Verification

If you gained plumbing experience in another state before moving to Idaho, DOPL evaluates those hours individually. You'll need the same documentation — Work Verification Forms completed by your out-of-state employers and supervising journeymen.

For plumbers holding an active journeyman license in Washington, Oregon, or Montana, a certified license history from the issuing state may serve as sufficient proof of experience under the reciprocity process. But for plumbers from non-reciprocity states, or those with apprentice-level experience only, the employer-by-employer verification is required.

For verification form templates and a detailed checklist for organizing your hour documentation, the Idaho Plumber License Guide includes everything you need to get your verification package together before you apply.

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