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Monterey Park, CA Building Safety: Plumbing Permits (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Adopted code
2025 California Plumbing Code, Title 24 Part 5
Authorizing statute
Government Code § 50022.9
Local amendment
Chapter 1 Division II rewritten, § 16.01.040 applies
Enforcing office
Building Division, Public Works Department
Maximum penalty
$1,000 fine and 6 months jail

Summary

In the City of Monterey Park, Municipal Code Section 16.09.010 adopts the 2025 California Plumbing Code by reference, requiring a permit for water, drain, waste and vent work covered by that code. The Building Division of the Public Works Department administers plumbing permits, and unpermitted work is a misdemeanor under the code's general penalty provisions.

§ 4.10.020. General penalty. Persons convicted of a misdemeanor, the penalty for which is not otherwise prescribed, will be punished by a fine not to exceed one thousand dollars; by imprisonment for not more than six months; or by both a fine and imprisonment for each violation of this code. ... § 16.09.010. Plumbing Code adopted by reference. Pursuant to Government Code Section 50022.9, the city council adopts and incorporates by reference the California Plumbing Code, 2025 Edition, as published in the California Code of Regulations Title 24, Part 5.

Full Breakdown

Section 16.09.010 states that, pursuant to Government Code Section 50022.9, the city council adopts and incorporates by reference the California Plumbing Code, 2025 Edition, as published in California Code of Regulations Title 24, Part 5. Adopting the full Plumbing Code carries its administrative chapter into city law, so most new water supply, drain-waste-vent, gas piping and fixture installations require a permit reviewed before work starts. Section 16.09.020 rewrites Chapter 1, Division II of the adopted code in its entirety so that, instead of the model code's own administrative procedures, permit applicants follow the citywide administrative provisions set out in Section 16.01.040. As with the other Title 16 codes, Section 16.01.020's definitions apply unless the Plumbing Code defines a term differently, and Section 16.01.030 makes any Monterey Park amendment control over a conflicting provision of the adopted code. Compliance is verified through the Building Division's standard plan-check and permit process shared with the city's other adopted construction codes.

Violations & Fines

Plumbing permit violations are not among the designated infractions listed in Section 4.10.030, so an unpermitted plumbing installation is a misdemeanor under the code's general prohibition, Section 4.10.010. Section 4.10.020 sets the penalty at a fine of up to $1,000, imprisonment for up to six months, or both, for each violation, with each continuing day chargeable as a separate offense.

Frequently Asked Questions

What plumbing code applies in Monterey Park?
Section 16.09.010 adopts the 2025 California Plumbing Code by reference, as published in California Code of Regulations Title 24, Part 5, bringing that code's permit and inspection requirements into city law for plumbing installations and alterations.
Where do I find the plumbing permit process?
Section 16.09.020 replaces the adopted code's own administrative chapter with the citywide procedures in Section 16.01.040, so plumbing permit applicants follow the same administrative steps used for the city's other Title 16 construction codes.
What is the penalty for plumbing work done without a permit?
It is a misdemeanor under Section 4.10.010 because plumbing violations are not designated infractions under Section 4.10.030. Section 4.10.020 sets the fine at up to $1,000, jail time up to six months, or both, per violation.

Sources & Official References

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