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Cal. VEH § 21226

This is the official text of Cal. VEH § 21226, part of California’s Vehicle Code — governs traffic laws, driver's licenses, and vehicle registration.

Not legal advice. This page reproduces the official text of a government statute for reference only. Laws change, and how a statute applies depends on your specific facts. For advice about your situation, consult a licensed attorney in your state.

Official statutory text

(a) A person shall not sell or offer for sale a motorized scooter that produces a maximum noise level exceeding 80 dbA at a distance of 50 feet from the centerline of travel when tested in accordance with Society of Automotive Engineers (SAE) Recommended Practice J331 JAN00.

(b) A motorized scooter, as defined in subdivision (b) of Section 407.5, shall at all times be equipped with a muffler meeting the requirements of this section, in constant operation and properly maintained to prevent any excessive or unusual noise, and a muffler or exhaust system shall not be equipped with a cutout, bypass, or similar device.

(c) A motorized scooter, as defined in subdivision (b) of Section 407.5, operated off the highways shall at all times be equipped with a muffler meeting the requirements of this section, in constant operation and properly maintained to prevent any excessive or unusual noise, and a muffler or exhaust system shall not be equipped with a cutout, bypass, or similar device.

(d) A person shall not modify the exhaust system of a motorized scooter in a manner that will amplify or increase the noise level emitted by the motor of the scooter so that it is not in compliance with this section or exceeds the noise level limit established by subdivision (a). A person shall not operate a motorized scooter with an exhaust system so modified.

Status: in_force · Read it on the official government site

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About this page: Statute text is reproduced from official government publishers via the Open US Law dataset (Vaquill AI, snapshot v2026.08, CC BY 4.0). Primary legislative text like this is public domain under the government-edicts doctrine (Georgia v. Public.Resource.Org, 2020). We link every section back to its official source so you can verify it independently.