Boulder Plumbing & Fuel Gas Code Amendments

City or town · Boulder County · Colorado

Plumbing code: 2024 IPC
Fuel gas code: 2024 IFGC
Effective: Aug 1, 2025
Adopted by: Ordinance No. 8684, Ordinance No. 8720
Local amendments: 26

Boulder doesn't use the model plumbing and gas codes exactly as printed. It adopted the 2024 IPC and 2024 IFGC and then made 26 local changes. Some are paperwork, like permits and fees. Others change what you build in the field, including water service line depth, gas pressure test, gas piping. If you bid off the model book alone, you can miss them. CodeCheck Colorado lists every one in plain English with the official source.

How deep does a water service line have to be in Boulder?

1 local change on this topic

Boulder sets its own rule for water service line depth. Sign in to see the rule and ordinance.

Compare water line depth across Colorado cities →

What is Boulder's gas pressure test requirement?

2 local changes on this topic · Free sample

Boulder: gas test pressure is at least 1.5 times working pressure and not under 10 psig (IFGC 406.4.1).

1 more Boulder rule on this topic in the app. Sign in or start a free trial.

Compare gas test pressure across Colorado cities →

What does Boulder change about gas piping?

1 local change on this topic

Boulder sets its own rule for gas piping. Sign in to see the rule and ordinance.

What are Boulder's local venting rules?

1 local change on this topic

Boulder sets its own rule for venting. Sign in to see the rule and ordinance.

How does Boulder handle plumbing tests and inspections?

1 local change on this topic

Boulder sets its own rule for plumbing tests and inspections. Sign in to see the rule and ordinance.

Does Boulder change any fixture requirements?

5 local changes on this topic

Boulder sets its own rule for fixtures. Sign in to see the rule and ordinance.

What is Boulder's rule on graywater systems?

2 local changes on this topic

Boulder sets its own rule for graywater. Sign in to see the rule and ordinance.

What permit and fee rules does Boulder add?

6 local changes on this topic

Boulder sets its own rule for permits and administration. Sign in to see the rule and ordinance.