Alameda County Code §6.60.050 prohibits repairing, rebuilding, modifying or testing vehicles in residential areas between 7 p.m. and 7 a.m. if it produces sound plainly audible at 50 feet. State Vehicle Code adds modified-exhaust and engine-brake limits.
Section 6.60.050 explicitly bans residential-area vehicle work between 7 p.m. and 7 a.m. when sound is plainly audible at 50 feet from the vehicle. California Vehicle Code §27150 prohibits any vehicle without an adequate muffler; §27151 bans modified exhaust louder than 95 dB(A). Engine brakes ('Jake brakes') on Castro Valley Boulevard / I-580 are restricted in posted areas. Loud motorcycles routinely cited under Cal. VC §27151.
Vehicle work outside allowed hours: §6.60 violation, $100-$500 admin citation or misdemeanor. Modified exhaust: VC §27150 fix-it ticket, $25 plus correction; refusal to correct escalates to $200+.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Castro Valley, CA
Alameda County NPO §6.65.030 prohibits parking or storing vehicles on lawns or unimproved surfaces of residential property. Vehicles must be on paved concret...
Castro Valley, CA
Alameda County Code §17.52.430 limits residential fences in Castro Valley to 4 feet in the required front yard, 6 feet in side and rear yards, and 2 feet wit...
Castro Valley, CA
Alameda County's stormwater rules and §6.65 NPO require dog owners in Castro Valley to immediately pick up and properly dispose of pet waste on any public pr...
Castro Valley, CA
California Building Code (adopted by Alameda County) requires chimneys serving fireplaces and wood stoves to have an approved spark arrestor. BAAQMD Regulati...
Castro Valley, CA
Alameda County Code §6.65.030 makes overgrown vegetation a property nuisance. Lawn/weeds exceeding 6 inches in height, or lack of vegetation that allows eros...
Castro Valley, CA
Commercial signage in Castro Valley is regulated under Alameda County Code §17.52.510 and Castro Valley-specific Chapter 17.51 design standards. Billboards a...
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