California E-Bike Helmet Laws
California has two helmet requirements that operate independently. First, anyone under 18 must wear a helmet on any bicycle, including all three e-bike classes, on a street, bikeway or public bicycle path or trail (Veh. Code § 21212(a)). Second, every rider of a Class 3 e-bike must wear a helmet regardless of age (§ 21213(b)). So: on Class 1 or Class 2, a helmet is required only under 18. On Class 3, always. The fine is no more than $25 (§ 21212(e)(1)), a parent is jointly and severally liable for a minor's fine (§ 21212(e)(2)), and there are two statutory routes to having the citation dismissed entirely.
AB 544 (Ch. 36, Stats. 2025) amended § 21212(f) to allow a specialized e-bike safety course to satisfy the dismissal off-ramp. That change is confirmed from the chaptered bill text and the CHP's 2026 new-laws release, but the consolidated current text of § 21212 including the amendment has not been read directly against the official Legislative Counsel source. The substance of the amendment is solid; the exact final wording of subdivision (f) is pending verification.
Two rules, not one
The most common mistake in summaries of California helmet law is treating it as a single rule. There are two, in different sections, doing different work:
§ 21212(a) — the age rule. No person under 18 may operate, or ride as a passenger on, a
bicycle, non-motorized scooter or skateboard, or use in-line or roller skates, on a street, bikeway
or public bicycle path or trail without a properly fitted and fastened helmet meeting ASTM or CPSC
standards. This applies to all three e-bike classes, because an e-bike is a bicycle for these
purposes under § 312.5(b).
§ 21213(b) — the Class 3 rule. No person may operate or ride as a passenger on a Class 3
e-bike "upon a street, bikeway, as defined in Section 890.4 of the Streets and Highways Code, or any
other public bicycle path or trail" without an ASTM or CPSC compliant helmet. No age qualifier. This
one also expressly reaches a person in a restraining seat attached to the bicycle or in a trailer
towed by it — so a toddler in a trailer behind a Class 3 needs a helmet.
Combined:
| Rider under 18 | Rider 18 or over | |
|---|---|---|
| Class 1 | Helmet required | Not required by state law |
| Class 2 | Helmet required | Not required by state law |
| Class 3 | Helmet required | Helmet required |
Penalties and the two off-ramps
§ 21212(e)(1) sets the fine at not more than $25, and § 21212(e)(2) makes a parent or legal
guardian jointly and severally liable for a minor's fine.
Two provisions then make the citation substantially avoidable:
First-offense dismissal — § 21212(d). A first violation is dismissed if the person alleges
under oath that it is a first offense and there is no evidence to the contrary. This is not
discretionary leniency; it is in the statute.
The 120-day course off-ramp — § 21212(f). The citation need not be transmitted to court if,
within 120 days, proof is furnished that the minor obtained an approved helmet and completed a
safety course. AB 544 (2025) amended this so that for an e-bike helmet violation, the course may be
"a specialized electric bicycle safety course, which may include … the electric bicycle safety and
training program developed by the Department of the California Highway Patrol."
Where the money goes
§ 21212(g) allocates the fine: 72.5% to a special account of the county health department for
safety education and helmet assistance programs, 2.5% to county administration, and 25% to
the city where the violation occurred, or the county if unincorporated.
This is worth knowing because it explains why many cities pair helmet enforcement with helmet giveaway programs — the statute funds exactly that.
The real cost of a $25 fine
A base fine is not the amount payable. Court assessments, penalties and surcharges typically add roughly $300 or more. Concrete figures from the Monterey County 2025 Uniform Bail Schedule:
| Violation | Base fine | Total bail |
|---|---|---|
§ 21212(a) — helmet |
$25 | $193 |
§ 21200.5 — riding under the influence |
$150 | $686 |
§ 21201(a)–(d) — equipment |
$25 | — |
These are 2025 figures for one county. § 42001(d) authorizes local entities to adopt their own
bicycle fine schedules within the statutory maxima, so amounts vary. The Judicial Council publishes a
statewide Uniform Bail and Penalty Schedule annually; county superior courts post mirrors of it.
Local rules that go further
Only a small number of California jurisdictions impose helmet requirements stricter than the Vehicle Code, and they cluster in two places:
Marin County and its eleven municipalities. Under the pilot authority in § 21214.5 (from
AB 1778, 2024), Marin County and every city and town within it adopted ordinances requiring
helmets for all Class 2 riders and passengers regardless of age, alongside an under-16
prohibition on Class 2. The county's ordinance took effect July 1, 2025; the eleven municipalities
followed between July 1 and September 14, 2025. Fine: $25 after a 60-day warning period, avoidable
by showing completion of a safety course or helmet purchase plus a course within 120 days. The
enabling statute sunsets January 1, 2029.
Dublin. Dublin Municipal Code Ch. 6.73, effective November 20, 2025, requires helmets for all
riders under 18 on e-bikes and e-scooters, for all riders of Class 3 regardless of age, and for
under-18 riders anywhere in a city park.
A number of other cities restate the state helmet rule in their own codes, which makes it locally
enforceable as a municipal violation rather than only as a Vehicle Code infraction — Huntington Beach
(HBMC § 10.84.140), Newport Beach (NBMC § 12.56.060), Carlsbad (CMC § 10.56.020), Chula Vista
(CVMC Ch. 10.73), Santa Barbara (SBMC Ch. 10.52) and San Clemente (SCMC Ch. 10.62) all do this.
The practical difference is which fine schedule applies and whether a local diversion program is
available.
Two possible additional cases are unverified: Palo Alto's § 22.04.220 is reported to mandate
helmets in open space and parks regardless of age, and Santa Clara County Parks is reported to
require helmets on unpaved trails. Neither has been confirmed against the primary code.
Helmet use in crashes
The peer-reviewed study of California e-bike collisions published in Trauma Surgery & Acute Care Open in July 2026 found "low rates of helmet use among injured riders," and its authors highlighted that finding alongside a disproportionate share of injuries involving children.
No specific helmet-use percentage is published here, because the figure sits in the paper's data tables and could not be verified from an accessible source. A number would be more satisfying than this paragraph; an unverified number on a legal reference page is worse than an admitted gap. See the statistics page for what the data does and does not support.
Common questions
Do adults have to wear a helmet on an e-bike in California?
Only on a Class 3. § 21213(b) requires a helmet for every rider and passenger on a Class 3 e-bike regardless of age. On Class 1 and Class 2, adults are not required to wear one under state law. A handful of local rules go further — Marin County and all eleven of its municipalities require helmets on Class 2 for all ages under their pilot ordinance, and Carlsbad's CMC § 10.56.020 requires helmets for all Class 3 riders as a matter of local code as well.
What is the fine for not wearing a bike helmet in California?
Not more than $25 as a base fine (§ 21212(e)(1)). But the base fine is not what you pay: court assessments, penalties and surcharges typically add roughly $300. For scale, the Monterey County 2025 bail schedule shows a $25 base fine for § 21212(a) producing total bail of $193. Amounts vary by county, since § 42001(d) lets local entities adopt their own bicycle fine schedules within the statutory maxima.
Can a helmet ticket be dismissed in California?
Yes, two ways. Under § 21212(d), a first violation is dismissed if the person alleges under oath that it is a first offense and there is no evidence to the contrary. Separately, under § 21212(f), the citation need not be transmitted to court at all if, within 120 days, proof is furnished that the minor obtained an approved helmet and completed a safety course. AB 544 (2025) amended that subdivision so that for an e-bike violation the course may be a specialized e-bike safety course, including the CHP's own e-bike safety and training program.
Are parents responsible for a child's helmet ticket in California?
Yes. § 21212(e)(2) makes a parent or legal guardian jointly and severally liable with the minor for the fine. The same structure appears in the county pilot statutes (§ 21214.5, § 21214.7) and in most local ordinances that address minors, several of which go further and make it a separate violation for a parent to knowingly permit a child to ride in breach of the rules — Carlsbad's CMC § 10.56.055 and Irvine's 2026 amendment both do this.
Does the helmet law apply on private property?
§ 21212(a) applies "upon a street, bikeway, as defined in Section 890.4 of the Streets and Highways Code, or any other public bicycle path or trail." A private driveway or private property is outside that language. Note, though, that Huntington Beach's November 2025 amendment (Ord. 4344) extended its local unsafe-riding authority to private property accessible to the public, such as shopping center lots — so local rules may reach where the state helmet law does not.
What kind of helmet satisfies California law?
One that is "properly fitted and fastened" and meets the standards of either the American Society for Testing and Materials (ASTM) or the US Consumer Product Safety Commission (CPSC). Virtually every helmet sold new in the United States for cycling carries CPSC certification. A helmet worn unbuckled or perched on the back of the head does not satisfy the statute, which specifies fitted and fastened.