North Dakota (ND) Plumbing Code & Permit Rules
International Plumbing Code (2018) · Updated 2026-05-31
Data: State plumbing boards, ICC, IAPMO, EPA Last verified: 2026-05-31
North Dakota allows homeowner DIY plumbing with permits, though annual backflow testing is still required. This balanced approach gives homeowners flexibility while maintaining water quality standards.
Plumbing Code
North Dakota 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 North Dakota
North Dakota 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
North Dakota requires annual backflow testing to protect the public water supply from contamination. Testing must be performed by a Certified tester.
Water Conservation Requirements
North Dakota follows federal water conservation standards. Federal minimums apply
Lead Service Line Replacement
North Dakota has an active lead service line replacement program. Following EPA Lead and Copper Rule 2021
Data Sources
- North Dakota 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 North Dakota?
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 North Dakota follow?
North Dakota follows the International Plumbing Code (2018 edition).
Can I do my own plumbing work in North Dakota?
Yes, homeowners in North Dakota can perform plumbing work on their primary residence with proper permits.
Do I need a permit to replace a water heater in North Dakota?
Yes, North Dakota requires a permit for water heater replacement. Homeowners may be able to do the work themselves with a permit.
Is backflow testing required in North Dakota?
Yes, North Dakota requires annual backflow testing.
Does North Dakota require seismic strapping for water heaters?
No, North Dakota does not require seismic strapping for water heaters. However, they remain a prudent option in areas with seismic activity.