Self-Serve tier

Classify plumbing helpers, apprentices, and journeymen as 1099 independent contractor vs W-2 employee using IRS 20-factor common-law test (Rev. Rul. 87-41), Cal Labor Code §2775 ABC test, state DOL audit factors, and trade-specific factors (tools, supervision, license-of-record).

Identify cross-connection hazards (high vs low hazard) and select the correct backflow prevention assembly per ASSE 5000-series device standards, USC FCCC&HR (Foundation for Cross-Connection Control and Hydraulic Research) #4/#5/#6 device classification, and EPA SDWA §1417 + IPC

Distinguish greywater (lavatory / bath / shower / clothes-washer) from blackwater (water closet / kitchen sink / dishwasher / urinal) per CA Plumbing Code Ch 16A (Title 24 Part 5), AZ R18-9-711, NM 20.7.7 NMAC, TX 30 TAC §285 + §210, OR OAR 340-053 / 340-071, and the IPC 2024 Ch

Determine which model plumbing code (IPC 2024 published by ICC, or UPC 2024 published by IAPMO) controls the project's jurisdiction and surface the high-impact differences (trap-to-vent distance, vent sizing, water heater pan, expansion tank trigger, fixture-unit counts). Embedde

Render the state-specific preliminary notice (CA 20-day Civ Code §8200; FL 45-day Notice to Owner §713.06; TX monthly fund-trapping Property Code §53.056; NY 8-month notice of lien Lien Law §10; AZ 20-day §33-992.01) to preserve the plumbing contractor / sub / supplier's mechanic

Determine master plumber state licensing path (experience hours, journeyman tenure, exam, reciprocity) for the plumbing business owner planning to qualify, expand to a new state, or hire a qualifying agent. Embedded 50-state map (CA C-36 / FL CFC-Plumbing / TX TSBPE Master / NY N

Enforce medical gas / vacuum piping certifications (ASSE 6010 Installer / 6020 Inspector / 6030 Verifier / 6040 Maintenance / 6050 Instructor / 6055 Bulk System Installer) and NFPA 99 Health Care Facilities Code requirements. Refuses to certify a plumbing contractor without ASSE

Enforce OSHA 29 CFR §1926 Subpart P (Excavations) protective-system requirement at the 5-foot trigger (and the 4-foot ladder/access trigger), competent-person designation per §1926.651(k), soil classification per Appendix A, and protective-system selection (sloping/benching, shor

Enforce the rule that the licensed plumbing contractor of record (not the homeowner, not the unlicensed handyman, not a runner) pulls the permit, with the homeowner-as-owner-builder narrow exception (CA Bus & Prof §7044, FL Fla. Stat. §489.103, TX Tex. Occ. Code §1301.255, NY no

Enforce the RPZ / RP / DCV / PVB annual test certification cycle (state DEP + water purveyor CCCP cadence; ASSE 5110 / 5120 tester certification; USC FCCC&HR Field Test Procedures; report submission). Refuses to certify a backflow assembly as compliant when the annual test is pas