Los Angeles County Municipal Code § 503.3 Marking and signage

Where required by the fire code official, approved signs or other approved notices or markings that include the words NO PARKING—FIRE LANE shall be provided for fire apparatus access roads to identify such roads, to clearly indicate the access to such roads, or to prohibit the obstruction thereof. The means by which fire lanes are designated shall be maintained in a clean and legible condition at all times and be replaced or repaired when necessary to provide adequate visibility. A no- parking designation shall meet the requirements of California Vehicle Code Section 22500.1 and be approved by the fire code official.

Signs shall have a minimum dimension of 12 inches (305 mm) wide by 18 inches (457 mm) high and have red letters on a white reflective background. Signs shall be posted on one or both sides of the fire apparatus road as required.

When required by the fire code official, fire apparatus access roads and structures located near high-voltage transmission lines shall be posted with signs, approved by the fire code official, that include the words "CAUTION OVERHEAD HIGH- VOLTAGE TRANSMISSION LINES."