Wyoming (WY) Plumbing Code & Permit Rules
International Plumbing Code (2018)
Data: State plumbing boards, ICC, IAPMO, EPA
Check Wyoming and local rules for homeowner plumbing permits and backflow testing requirements.
Plumbing Code
Wyoming follows the International Plumbing Code (2018 edition).
Key Regulations
| Regulation | Status | Details |
|---|---|---|
| Plumbing Code | IPC (2018) | International Plumbing Code |
| Homeowner DIY | Allowed | Permissive for primary residence |
| Water Heater Permit | Required | Permissive for primary residence |
| Backflow Testing | Annual, required | |
| Seismic Strapping | Not required | Water heater restraint |
DIY Plumbing in Wyoming
Wyoming allows homeowners to perform plumbing work on their primary residence. A permit is required for most work beyond minor repairs.
Common DIY-allowed projects (with permit):
- Replacing faucets and fixtures
- Installing shut-off valves
- Replacing toilet components
- Minor drain repairs
Projects that typically require a licensed plumber:
- New water line installation
- Sewer line repair or replacement
- Gas line connections
- Backflow preventer installation
Backflow Prevention
Wyoming requires annual backflow testing to protect the public water supply from contamination. Testing must be performed by a Certified tester.
Water Conservation Requirements
Wyoming follows federal water conservation standards. Federal minimums apply
Lead Service Line Replacement
Wyoming is subject to EPA lead service line inventory and replacement requirements.
Data Sources
- Wyoming state plumbing board and licensing agency
- International Code Council (ICC)
- IAPMO
- EPA Safe Drinking Water Act
Updated as regulations change.
Need a licensed plumber in Wyoming?
Plumbing regulations vary by city. Connect with a licensed professional who knows your local code requirements.
Find a Licensed Plumber →Frequently Asked Questions
What plumbing code does Wyoming follow?
Wyoming follows the International Plumbing Code (2018 edition) as of our last review; state and local amendments may apply.
Can I do my own plumbing work in Wyoming?
Homeowners in Wyoming may be allowed to do plumbing work on their primary residence; check state and local permit rules before starting.
Do I need a permit to replace a water heater in Wyoming?
Permit rules for water heater replacement in Wyoming depend on the state and your local jurisdiction; check with your local building department. Homeowners may be able to do the work themselves with a permit.
Is backflow testing required in Wyoming?
Backflow testing requirements in Wyoming depend on the state code and your water utility; check with your utility about which assemblies must be tested and how often.
Does Wyoming require seismic strapping for water heaters?
We have no statewide seismic strapping requirement for water heaters on record for Wyoming; local building codes may still require it, so check with your local building department. Strapping remains a prudent option in areas with seismic activity.