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Contra Costa County, CA Fire Regulations: Fireworks (2026)

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

Key Facts

Code Section
Ord. Code Ch. 44-2.004
Safe & Sane fireworks
Banned
1st violation fine
$100
Repeat fines
$200 / $500
Property owner liability
Yes (44-2.008)

Summary

Contra Costa County Ordinance Code Chapter 44-2 (as amended by Ordinance 2021-19) and Section 5601.1.3 of the County Fire Code (Ord. 2025-14) prohibit the possession, manufacture, sale, offer for sale, use, and discharge of all fireworks in unincorporated areas, including state-classified 'safe and sane' fireworks. There is no carve-out for the Fourth of July.

City-specific rules exist: Antioch, Brentwood, and San Ramon have their own fireworks rules that differ from Contra Costa County's county-level regulations. If you live in one of those cities, check the city-specific page instead.

44-2.004 Prohibition. No person shall possess, manufacture, sell, offer to sell, use, or discharge, any fireworks. (Ords. 2021-19 Section 2, 72-19 Section 1: prior code Section 3220; Ord. 684.)

Source: Contra Costa County Ordinance CodeView official code

Full Breakdown

Under County Ordinance Code Section 44-2.004 (Prohibition): 'No person shall possess, manufacture, sell, offer to sell, use, or discharge, any fireworks.' Section 44-2.002 defines 'fireworks' to include both 'dangerous fireworks' (Health & Safety Code Section 12505) and 'safe and sane fireworks' (Health & Safety Code Section 12529), but excludes 'exempt fireworks' (Section 12508) and party poppers/snap caps. Section 44-2.008 imposes liability on the 'responsible party', any owner, renter, lessee, or person controlling access to a residence or vessel, even if they are not present when the violation occurs. Section 14-8.008(d)(5) vests the Sheriff with infraction-citation authority for Chapter 44-2 violations.

Violations & Fines

Per the June 8, 2021 Board of Supervisors press release on Ordinance 2021-19, a violation carries a $100 fine for the first offense, $200 for a second within one year, and $500 for each additional violation within one year. Property owners are liable even when absent. Section 5601.1.3.3 of the adopted Fire Code also authorizes any Fire Official or peace officer to arrest violators as an infraction or administrative citation.

Frequently Asked Questions

Are 'Safe and Sane' fireworks legal in unincorporated Contra Costa County?
No. Section 44-2.002(a)(1)(B) explicitly defines 'fireworks' to include 'safe and sane fireworks' as defined in Health & Safety Code Section 12529, and Section 44-2.004 prohibits all such items.
Can I be fined if guests set off fireworks at my house while I'm out?
Yes. Section 44-2.008 holds the 'responsible party' liable 'regardless of whether the responsible party is present when the violation occurs.'
Are sparklers and party poppers allowed?
Party poppers and snap caps (as defined in 19 CCR Section 980) are excluded from the definition under Section 44-2.002(a)(2)(B). Sparklers classified as 'safe and sane' under state law are still prohibited locally.

Sources & Official References

Other rules in Contra Costa County

All Contra Costa County rules

How Contra Costa County compares: Cities Where Fireworks Are Banned or Heavily Restricted·California rules heatmap·Compare Contra Costa County to another location·View the California fire regulations overview

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