Plumbing Permit in Riverton, Wyoming

Riverton requires a plumbing permit for: Plumbing alteration, sanitary sewer replacement, gas line testing, water heater installation/replacement; DWV systems (underslab only) tested on completion of rough piping by water (10 ft head, 15 min hold) or air (5 psi / 10 in. Hg, 15 min hold) test — Schedule 40 PVC allowed to be tested with air (locally amended IPC §§ 312.1, 312.3 and IRC § P2503.5.1); Backflow prevention: required check valve and expansion tank status noted on the application form; Water tap size 2 inches or greater requires DEQ (Wyoming Dept. of Environmental Quality) review. If your project isn't listed, confirm with City of Riverton Community Development Department — Building Division at (307) 856-2999 before starting work.

In Riverton, the published Plumbing Alteration is: $26.00 minimum. Additional published fees: Water Heater Replacement (residential) — $26.00 minimum; Gas Piping Test — $26.00 per test or trip; Water or Sewer Replacement — $52.00. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Plan review for a plumbing permit in Riverton typically runs 1–10 business days. This is an estimate, not a published figure — confirm current review times with City of Riverton Community Development Department — Building Division at (307) 856-2999.

You'll need: Application for Building Permit. See the required-documents checklist on this page for details on each.

Riverton requires 3 inspection(s) for a plumbing permit, in order: Underground Plumbing, Rough Plumbing, Final. Schedule each through City of Riverton Community Development Department — Building Division ((307) 856-2999).

Apply through City of Riverton Community Development Department — Building Division at 816 N. Federal Blvd., Riverton, WY 82501. Phone: (307) 856-2999, email: kpetersen@rivertonwy.gov. Office hours: Mon–Fri (contact department for current hours); building permitting/inspection line (307) 857-7708. Official information: https://www.rivertonwy.gov/departments/community_dev/building_permits___inspections/index.php.

Riverton, Wyoming has adopted: 2024 International Building Code (IBC), including appendices A, B, C, F, H, I, J, K — adopted by Enrolled Ordinance No. 25-003 (effective March 22, 2025); 2024 International Residential Code (IRC), including appendices AA, BA, BB, BC, BD, BE, BF, BG, BH, BO, CA, CB, CC, CD, CE, CF (excluding Chapter 11) — Ordinance No. 25-003; 2024 International Mechanical Code (IMC), including appendix A — Ordinance No. 25-003; 2024 International Plumbing Code (IPC), including appendices C, D, E, F — Ordinance No. 25-003; 2024 International Fuel Gas Code (IFGC), including appendices A, B, C, D — Ordinance No. 25-003; 2024 International Fire Code (IFC), including appendices A–G — Ordinance No. 25-003; 2024 International Code Council Performance Code (ICCPC) — Ordinance No. 25-003; 2024 International Property Maintenance Code (IPMC), including appendices A, B — Ordinance No. 25-003; 2024 International Existing Building Code (IEBC) — Ordinance No. 25-003; National Electrical Code (NEC) — NFPA 70; Riverton Municipal Code § 15.08.110(B)(2) ties compliance to 'the latest edition of the National Electrical Code,' which per wsfm.wyo.gov/electrical-safety is now the 2026 edition, effective statewide July 1, 2026 (the 2023 edition was the applicable 'latest edition' from July 1, 2023 until then) — adopted by the City of Riverton itself as Riverton Municipal Code Chapter 15.08 'Electrical Code'; enforced by the city's own electrical inspector, NOT solely the Wyoming State Fire Marshal's default statewide program; National Fire Codes (NFC), current editions, NFPA; National Housing Construction and Safety Standards Act of 1974 (as amended through May 30, 2006, HUD) — governs manufactured/mobile home construction; ICC/ANSI A117.1-2017 — Accessible and Usable Buildings and Facilities. Local amendments apply — see the Riverton overview page for the full list.

Per the city's locally amended IRC/IPC provisions, underslab DWV systems are tested on completion of rough piping by either a water test (filled to 10 feet above the highest fitting, held 15 minutes) or an air test (5 psi / 10 inches of mercury, held 15 minutes without added air). Schedule 40 PVC may be tested with air.