Concord does not maintain a formal municipal no-knock registry, but posted "No Soliciting" or "No Trespassing" signs have legal effect under Concord Municipal Code Chapter 5.50 and California Penal Code Β§602. Residents can also register on the California Do Not Call Registry (DNC) and federal Do Not Call Registry to reduce phone solicitation.
Unlike some larger California cities (e.g., Elk Grove, Sacramento), Concord has not adopted a formal municipal no-knock or do-not-solicit registry where residents can enroll addresses to legally prohibit all commercial solicitation. Instead, Concord relies on a sign-based enforcement model: a conspicuously posted "No Soliciting" sign at the front entrance or gate provides legal notice, and any commercial solicitor who ignores it violates CMC Chapter 5.50 and may also be committing trespass after demand to leave under California Penal Code Β§602(o). Signs should be readable from the street or front walkway and clearly state the property owner's prohibition. On the phone side, California residents should register on the federal Do Not Call Registry (donotcall.gov) β enrollment is permanent and free β to reduce telemarketing calls; California also has robust protections under the California Consumer Privacy Act (CCPA, Civ. Code Β§1798.100 et seq.) and the Rosenthal Fair Debt Collection Practices Act. Text-message spam may violate the federal Telephone Consumer Protection Act (TCPA, 47 USC Β§227) with statutory damages of $500β$1,500 per violation. Residents receiving solicitation from the same commercial operator repeatedly can file complaints with the California Department of Consumer Affairs, the Attorney General's Office, or pursue small-claims actions under TCPA.
Contact your local code enforcement office for specific penalty information.
Concord, CA
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Concord, CA
Commercial vehicles over 10,000 lbs GVWR are prohibited from overnight parking on residential streets in Concord and cannot be stored on residentially zoned ...
Concord, CA
California Public Resources Code Β§4291 requires 100 feet of defensible space around structures in State Responsibility Areas and Very High Fire Hazard Severi...
Concord, CA
All fireworks, including "safe and sane" fireworks, are completely banned in Concord. Possession, sale, or use of any consumer fireworks is a misdemeanor pun...
Concord, CA
Concord regulates removal of protected trees under Concord Municipal Code chapter 8.50 (Tree Preservation). Protected trees over 10 inches DBH require a perm...
Concord, CA
Concord water customers served by Contra Costa Water District must follow permanent statewide conservation rules: no runoff, no watering during or 48 hours a...
Side-by-side rule comparisons with other cities in Contra Costa County.
See how other cities in Contra Costa County handle no-knock registry.
See how Concord's no-knock registry rules stack up against other locations.
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