If you wish to research California overhang law please visit: http://www.dot.ca.gov/trafficops/trucks/overhang.html

California cities: Acton, Adelanto, Agoura Hills, Alameda, Alamo, Albany, Alhambra, Aliso Viejo, Almanor, Alondra Park, Alpaugh, Alpine, Alpine Village, Altadena, Alta Sierra, Alturas, Alum Rock, Amador City, American Canyon, Amesti, Anaheim, Anderson, Angels City, Angwin, Antioch, Apple Valley, Aptos, Aptos Hills-Larkin Valley, Arbuckle, Arcadia, Arcata, Arden-Arcade, Armona, Arnold, Aromas, Arroyo Grande, Artesia, Arvin, Ashland, Atascadero, Atherton, Atwater, Auberry, Auburn, August, Avalon, Avenal, Avery, Avocado Heights, Azusa, Bakersfield, Baldwin Park, Banning, Barstow, Bay Point, Bayview, Bayview-Montalvin, Baywood-Los Osos, Beale AFB, Bear Valley, Bear Valley Springs, Beaumont, Beckwourth, Belden, Bell, Bellflower, Bell Gardens, Belmont, Belvedere, Benicia, Ben Lomond, Berkeley, Bermuda Dunes, Bertsch-Oceanview, Bethel Island, Beverly Hills, Big Bear City, Big Bear Lake, Big Bend, Biggs, Big Pine, Big River, Biola, Bishop, Blackhawk-Camino Tassajara, Black Point-Green Point, Blairsden, Bloomington, Blue Lake, Bluewater, Blythe, Bodega Bay, Bodfish, Bolinas, Bombay Beach, Bonadelle Ranchos-Madera Ranchos, Bonita, Bonsall, Bootjack, Boron, Boronda, Borrego Springs, Bostonia, Boulder Creek, Bowles, Boyes Hot Springs, Bradbury, Bradley, Brawley, Brea, Brentwood, Bret Harte, Brisbane, Broadmoor, Bucks Lake, Buellton, Buena Park, Buena Vista, Burbank, Burbank, Burlingame, Burney, Buttonwillow, Byron, Bystrom, Cabazon, Calabasas, Calexico, California City, Calimesa, Calipatria, Calistoga, Calwa, Camarillo, Cambria, Cambrian Park, Cameron Park, Campbell, Camp Pendleton North, Camp Pendleton South, Cantua Creek, Canyondam, Canyon Lake, Capitola, Caribou, Carlsbad, Carmel-by-the-Sea, Carmel Valley Village, Carmichael, Carpinteria, Carrick, Carson, Cartago, Caruthers, Casa Conejo, Casa de Oro-Mount Helix, Castro Valley, Castroville, Cathedral City, Cayucos, Ceres, Cerritos, Challenge-Brownsville, Channel Islands Beach, Charter Oak, Cherryland, Cherry Valley, Chester, Chico, Chilcoot-Vinton, China Lake Acres, Chinese Camp, Chino, Chino Hills, Chowchilla, Chualar, Chula Vista, Citrus, Citrus Heights, Claremont, Clayton, Clearlake, Clearlake Oaks, Clio, Cloverdale, Clovis, Clyde, Coachella, Coalinga, Cobb, Colfax, Colma, Colton, Columbia, Colusa, Commerce, Compton, Concord, Concow, Copperopolis, Corcoran, Corning, Corona, Coronado, Corralitos, Corte Madera, Costa Mesa, Cotati, Coto de Caza, Cottonwood, Country Club, Covelo, Covina, Crescent City, Crescent City North, Crescent Mills, Crest, Crestline, C-Road, Crockett, Cromberg, Cudahy, Culver City, Cupertino, Cutler, Cutten, Cypress, Daly City, Dana Point, Danville, Darwin, Davis, Day Valley, Deer Park, Del Aire, Delano, Delhi, Delleker, Del Mar, Del Monte Forest, Del Rey, Del Rey Oaks, Del Rio, Denair, Derby Acres, Desert Hot Springs, Desert Shores, Desert View Highlands, Diablo, Diamond Bar, Diamond Springs, Dillon Beach, Dinuba, Discovery Bay, Dixon, Dixon Lane-Meadow Creek, Dollar Point, Dorrington, Dorris, Dos Palos, Downey, Duarte, Dublin, Ducor, Dunsmuir, Durham, Dustin Acres, Earlimart, East Blythe, East Compton, East Foothills, East Hemet, East La Mirada, East Los Angeles, East Oakdale, Easton, East Orosi, East Palo Alto, East Pasadena, East Porterville, East Quincy, East Richmond Heights, East San Gabriel, East Shore, East Sonora, Edgewood, Edwards AFB, El Cajon, El Centro, El Cerrito, El Cerrito, El Dorado Hills, Eldridge, El Granada, Elk Grove, Elkhorn, Elmira, El Monte, El Paso de Robles (Paso Robles), El Rio, El Segundo, El Sobrante, El Verano, Emerald Lake Hills, Emeryville, Empire, Encinitas, Escalon, Escondido, Esparto, Etna, Eureka, Exeter, Fairbanks Ranch, Fairfax, Fairfield, Fair Oaks, Fairview, Fallbrook, Fall River Mills, Farmersville, Farmington, Fellows, Felton, Ferndale, Fetters Hot Springs-Agua Caliente, Fillmore, Firebaugh, Florence-Graham, Florin, Folsom, Fontana, Foothill Farms, Foothill Ranch, Ford City, Foresthill, Forest Meadows, Forestville, Fort Bragg, Fort Jones, Fortuna, Foster City, Fountain Valley, Fowler, Frazier Park, Freedom, Fremont, French Camp, French Gulch, Fresno, Friant, Fruitdale, Fullerton, Furnace Creek, Galt, Gardena, Garden Acres, Garden Grove, Gazelle, Georgetown, Gerber-Las Flores, Gilroy, Glen Avon, Glendale, Glendora, Glen Ellen, Golden Hills, Gold River, Goleta, Gonzales, Goshen, Graeagle, Grand Terrace, Granite Bay, Granite Hills, Grass Valley, Graton, Grayson, Greenfield, Greenhorn, Green Valley, Greenview, Greenville, Grenada, Gridley, Groveland-Big Oak Flat, Grover Beach, Guadalupe, Guerneville, Gustine, Hacienda Heights, Half Moon Bay, Hamilton Branch, Hamilton City, Hanford, Harbison Canyon, Hawaiian Gardens, Hawthorne, Hayfork, Hayward, Healdsburg, Heber, Hemet, Hercules, Hermosa Beach, Hesperia, Hickman, Hidden Hills, Hidden Meadows, Hidden Valley Lake, Highgrove, Highland, Highlands-Baywood Park, Hillsborough, Hilmar-Irwin, Hollister, Holtville, Home Garden, Home Gardens, Homeland, Homewood Canyon-Valley Wells, Hornbrook, Hughson, Humboldt Hill, Huntington Beach, Huntington Park, Huron, Hydesville, Idyllwild-Pine Cove, Imperial, Imperial Beach, Independence, Indian Falls, Indian Wells, Indio, Industry, Inglewood, Interlaken, Inverness, Inyokern, Ione, Iron Horse, Irvine, Irwindale, Isla Vista, Isleton, Ivanhoe, Jackson, Jamestown, Jamul, Johannesburg, Johnsville, Joshua Tree, Julian, Keddie, Keeler, Keene, Kelseyville, Kennedy, Kensington, Kentfield, Kerman, Kernville, Kettleman City, Keyes, King City, Kings Beach, Kingsburg, Kirkwood, Klamath, Knightsen, La Canada Flintridge, La Crescenta-Montrose, Ladera Heights, Lafayette, Laguna, Laguna Beach, Laguna Hills, Laguna Niguel, Laguna West-Lakeside, Laguna Woods, Lagunitas-Forest Knolls, La Habra, La Habra Heights, Lake Almanor Country Club, Lake Almanor Peninsula, Lake Almanor West, Lake Arrowhead, Lake Davis, Lake Elsinore, Lake Forest, Lakehead-Lakeshore, Lake Isabella, Lakeland Village, Lake Los Angeles, Lake Nacimiento, Lake of the Pines, Lake of the Woods, Lakeport, Lake San Marcos, Lakeside, Lakeview, Lake Wildwood, Lakewood, La Mesa, La Mirada, Lamont, Lanare, Lancaster, La Palma, La Porte, La Presa, La Puente, La Quinta, La Riviera, Larkfield-Wikiup, Larkspur, Las Flores, Las Lomas, Lathrop, Laton, La Verne, Lawndale, Laytonville, Lebec, Le Grand, Lemon Cove, Lemon Grove, Lemoore, Lemoore Station, Lennox, Lenwood, Lewiston, Lexington Hills, Lincoln, Lincoln Village, Linda, Linden, Lindsay, Little Grass Valley, Littlerock, Live Oak, Live Oak, Livermore, Livingston, Lockeford, Lodi, Loma Linda, Loma Rica, Lomita, Lompoc, London, Lone Pine, Long Beach, Loomis, Los Alamitos, Los Alamos, Los Altos, Los Altos Hills, Los Angeles, Los Banos, Los Gatos, Los Molinos, Lost Hills, Lower Lake, Loyalton, Loyola, Lucas Valley-Marinwood, Lucerne, Lynwood, McArthur, McCloud, Macdoel, McFarland, McKinleyville, McKittrick, Madera, Madera Acres, Magalia, Malibu, Mammoth Lakes, Manhattan Beach, Manteca, Manton, March AFB, Maricopa, Marina, Marina del Rey, Mariposa, Markleeville, Martinez, Marysville, Mayflower Village, Maywood, Meadow Valley, Meadow Vista, Mecca, Meiners Oaks, Mendocino, Mendota, Menlo Park, Mentone, Merced, Mesa, Mesa Vista, Mettler, Middletown, Millbrae, Mill Valley, Millville, Milpitas, Mineral, Mira Loma, Mira Monte, Mission Canyon, Mission Hills, Mission Viejo, Mi-Wuk Village, Modesto, Mohawk Vista, Mojave, Mokelumne Hill, Mono Vista, Monrovia, Montague, Montara, Montclair, Montebello, Montecito, Monterey, Monterey Park, Monte Rio, Monte Sereno, Montgomery Creek, Moorpark, Morada, Moraga, Moreno Valley, Morgan Hill, Morongo Valley, Morro Bay, Moss Beach, Moss Landing, Mountain Mesa, Mountain Ranch, Mountain View, Mountain View, Mountain View Acres, Mount Hebron, Mount Shasta, Muir Beach, Murphys, Murrieta, Murrieta Hot Springs, Muscoy, Myrtletown, Napa, National City, Nebo Center, Needles, Nevada City, Newark, Newman, Newport Beach, Newport Coast, Nice, Niland, Nipomo, Norco, North Auburn, North Edwards, North El Monte, North Fair Oaks, North Highlands, North Lakeport, North Woodbridge, Norwalk, Novato, Nuevo, Oakdale, Oakhurst, Oakland, Oakley, Oak Park, Oak View, Occidental, Oceano, Oceanside, Ocotillo, Oildale, Ojai, Olancha, Olivehurst, Ontario, Onyx, Opal Cliffs, Orange, Orange Cove, Orangevale, Orcutt, Orinda, Orland, Orosi, Oroville, Oroville East, Oxnard, Pacheco, Pacifica, Pacific Grove, Pajaro, Palermo, Palmdale, Palm Desert, Palm Springs, Palo Alto, Palo Cedro, Palos Verdes Estates, Palo Verde, Paradise, Paramount, Parksdale, Parkway-South Sacramento, Parkwood, Parlier, Pasadena, Patterson, Paxton, Pearsonville, Pedley, Penn Valley, Perris, Petaluma, Phoenix Lake-Cedar Ridge, Pico Rivera, Piedmont, Pine Hills, Pine Mountain Club, Pine Valley, Pinole, Piru, Pismo Beach, Pittsburg, Pixley, Placentia, Placerville, Planada, Pleasant Hill, Pleasanton, Plumas Eureka, Plymouth, Point Arena, Point Reyes Station, Pollock Pines, Pomona, Poplar-Cotton Center, Port Costa, Porterville, Port Hueneme, Portola, Portola Hills, Portola Valley, Poway, Prattville, Prunedale, Quail Valley, Quartz Hill, Quincy, Rail Road Flat, Rainbow, Raisin City, Ramona, Rancho Calaveras, Rancho Cordova, Rancho Cucamonga, Rancho Mirage, Rancho Murieta, Rancho Palos Verdes, Rancho San Diego, Rancho Santa Fe, Rancho Santa Margarita, Rancho Tehama Reserve, Randsburg, Red Bluff, Redding, Redlands, Redondo Beach, Redway, Redwood City, Reedley, Rialto, Richgrove, Richmond, Ridgecrest, Ridgemark, Rio Dell, Rio del Mar, Rio Linda, Rio Vista, Ripon, Riverbank, Riverdale, Riverdale Park, Riverside, Rocklin, Rodeo, Rohnert Park, Rolling Hills, Rolling Hills Estates, Rollingwood, Romoland, Rosamond, Rosedale, Roseland, Rosemead, Rosemont, Roseville, Ross, Rossmoor, Round Mountain, Round Valley, Rowland Heights, Rubidoux, Running Springs, Sacramento, St. Helena, Salida, Salinas, Salton City, Salton Sea Beach, San Andreas, San Anselmo, San Antonio Heights, San Ardo, San Bernardino, San Bruno, San Buenaventura (Ventura), San Carlos, San Clemente, Sand City, San Diego, San Diego Country Estates, San Dimas, San Fernando, San Francisco, San Gabriel, Sanger, San Geronimo, San Jacinto, San Joaquin, San Joaquin Hills, San Jose, San Juan Bautista, San Juan Capistrano, San Leandro, San Lorenzo, San Lucas, San Luis Obispo, San Marcos, San Marino, San Martin, San Mateo, San Miguel, San Pablo, San Rafael, San Ramon, Santa Ana, Santa Barbara, Santa Clara, Santa Clarita, Santa Cruz, Santa Fe Springs, Santa Maria, Santa Monica, Santa Paula, Santa Rosa, Santa Venetia, Santa Ynez, Santee, Saratoga, Sausalito, Scotts Valley, Seal Beach, Searles Valley, Seaside, Sebastopol, Sedco Hills, Seeley, Selma, Seven Trees, Shackelford, Shafter, Shandon, Shasta Lake, Shaver Lake, Shingle Springs, Shingletown, Shoshone, Sierra Madre, Signal Hill, Simi Valley, Solana Beach, Soledad, Solvang, Sonoma, Sonora, Soquel, Soulsbyville, South Dos Palos, South El Monte, South Gate, South Lake Tahoe, South Oroville, South Pasadena, South San Francisco, South San Gabriel, South San Jose Hills, South Taft, South Whittier, South Woodbridge, South Yuba City, Spreckels, Spring Garden, Spring Valley, Springville, Squaw Valley, Squirrel Mountain Valley, Stallion Springs, Stanford, Stanton, Stinson Beach, Stockton, Storrie, Stratford, Strathmore, Strawberry, Suisun City, Summerland, Sun City, Sunnyside-Tahoe City, Sunnyslope, Sunnyvale, Sunol, Sunol-Midtown, Susanville, Sutter, Sutter Creek, Taft, Taft Heights, Taft Mosswood, Tahoe Vista, Talmage, Tamalpais-Homestead Valley, Tara Hills, Taylorsville, Tecopa, Tehachapi, Tehama, Temecula, Temelec, Temple City, Templeton, Tennant, Terra Bella, Thermalito, Thousand Oaks, Thousand Palms, Three Rivers, Tiburon, Tierra Buena, Tipton, Tobin, Tomales, Toro Canyon, Torrance, Tracy, Tranquillity, Traver, Trinidad, Truckee, Tulare, Tulelake, Tuolumne City, Tupman, Turlock, Tustin, Tustin Foothills, Twain, Twain Harte, Twentynine Palms, Twentynine Palms Base, Twin Lakes, Ukiah, Union City, Upland, Upper Lake, Vacaville, Valinda, Vallecito, Vallejo, Valle Vista, Valley Acres, Valley Center, Valley Ranch, Valley Springs, Val Verde, Vandenberg AFB, Vandenberg Village, Vernon, Victorville, View Park-Windsor Hills, Villa Park, Vincent, Vine Hill, Vineyard, Visalia, Vista, Waldon, Wallace, Walnut, Walnut Creek, Walnut Grove, Walnut Park, Wasco, Waterford, Watsonville, Weaverville, Weed, Weedpatch, Weldon, West Athens, West Bishop, West Carson, West Compton, West Covina, Westhaven-Moonstone, West Hollywood, Westlake Village, Westley, West Menlo Park, Westminster, West Modesto, Westmont, Westmorland, West Point, West Puente Valley, West Sacramento, West Whittier-Los Nietos, Westwood, Wheatland, Whitehawk, Whittier, Wildomar, Wilkerson, Williams, Willits, Willowbrook, Willow Creek, Willows, Wilton, Winchester, Windsor, Winter Gardens, Winterhaven, Winters, Winton, Wofford Heights, Woodacre, Woodcrest, Woodlake, Woodland, Woodside, Woodville, Wrightwood, Yorba Linda, Yosemite Lakes, Yosemite Valley, Yountville, Yreka, Yuba City, Yucaipa, Yucca Valley.

Heavy haul trucking and oversize load permit limitations.
Maximum weight maximum weight: steering axle, 12,500 pounds. Single axle, 20,000 pounds. Tandem axle, 46,000 pounds. Try to maximal, 60,000 pounds. Trunnion axle, 10 feet wide 60,000 pounds. Quad axles are not recognize for heavy haul weights. Gross weight on five axles 112,500 pounds. Six axles hundred and 17,450 pounds. Seven and eight axles 158,000 pounds to 181,000 pounds which will be subject to inspection for heavy haul shipments. You may not move a heavy haul shipment on tandem axles that have more than a 8 foot spread. You may not move a heavy haul shipment on tridum axles that exceed a 10 foot spread.
Maximum length is 135 feet.
Maximum width is 15 feet.
Maximum height. Any shipment that is in excess of 17 feet tall must be accompanied by a routes survey with a high pole set at 3 inches above the load clearance height. All shipments that are over height must be on a lowboy, double drop or otherwise special lowered deck trailer. The state of California will permit shipments that are taller under special circumstances. The state of California has two different regions that use the state wide color route classification system that includes maps for shipments and pilot car company operators. You will need to check your permit for these route color classifications to determine if you need pilot cars or escorts. There are so many requirements we could not possibly list them here. For additional information please refer to the Caltrans links above.

Heavy haul and oversize trucking shipments that are classified as super loads.Any shipment that is in excess of 16 feet wide is a super load. Any shipment that exceeds the weights and dimensions listed above will more than likely be classified as a superload. In many circumstances certain routes will require that you file for a superload permit while other routes may not require you to file for a superload permit. For more information please refer to the above section on super loads as well as the Caltrans links. While performing our research we found it difficult to obtain information on California superload shipments as the term “superload” is not as widely used in this state as in other states.

Heavy haul and oversize load sign, flags and lights.
Any shipment being moved in the state of California that is an excess of 8’6″ wide or 80 feet long or more than 10 feet of overhang will need to use the appropriate warning signs. Warning signs shall be posted on the front and the rear of the shipment and need to specify “long load” or “oversize load” or “wideload” or “excessive front overhang” or “excessive rear overhang”. The applicable warning sign must be used whenever you are transporting a shipment that falls under these dimensions. At times when a load is oversize and long as long as the load is not over 100 feet in length a “oversize load” sign could be used. However, if the shipment is in excess of 100 feet long then a “long load” sign will need to be used. All signs must display black letters on a yellow background. The letters must be 10 inches in height and a minimum of 1 5/8 inches wide. All signs will need to be mounted at least 18 inches above the surface of the road on both the front and the rear of the entire combination bowls signs and flags are required on vehicles that are over the legal width (8’6”). Flags are required whenever any shipment extends beyond 4 feet or more of the end of the trailer. For night movements you will need to use both safety lights and flags. To safety lights and two flags are required for night shipments that are in excess of 2 feet in width. These lights are to be no more than 6 candlepower lights that are clearly visible from both the side and the rear of the shipment for 500 feet if the shipment has front overhang you may be required to use to white lights visible from 500 feet in combination with the flags on the front of the load. As stated above the flags will need to be read or florescent orange in color and square with each side of the square a minimum of 16 inches. Any revolving amber lights on any towing unit must be completely covered when not transporting a permitted shipment.

Pilot car and escort vehicle requirements. Do I need one?

When a shipment is over 12 feet wide depending on the routes one or two pilot cars or escort vehicles are required. When a shipment is 120 feet to 135 feet long depending on the location and route one or more pilot cars or escorts may be required. If the shipment is over 100 feet and linked in Los Angeles County or in the city of Los Angeles you will be required to have one front and one rear pilot car or escort vehicle. Any shipment that is in excess of 18 feet or more and height will require a utility clearance and a routes survey done by a pilot car or escort vehicle equipped with a high pole. For shipments that have 30 feet or more of front overhang one pilot car will be required in for shipments with 25 feet of overhang beyond the rear of the trailer may require one or more pilot cars or escort vehicles. Be sure to use the above links to print a Caltrans route classification map to determine if you are moving on a red, blue, green, yellow or brown route for escort/pilot requirements. Pilot car requirements in the state of California required by Caltrans on oversize and some heavy haul shipments are extremely complicated. At times on some routes with rear overhang that is over 25 feet in some areas they may require two rear pilot car or escort vehicles while on others one. Some route colors only allow a single pilot car or escort vehicles to operate on them. So be 100% certain you have done your homework when it comes to operating a pilot car or escort vehicle in the state of California. As a final notation pilot cars and escort vehicles are to remain to the right hand side of the centerline of the roadway at all times. Failure to comply will result in a hefty fine.

Requirements for escort and pilot car vehicle operators.
All pilot cars and escort vehicles must be a minimum of 60 inches wide. All escort vehicles and pilot cars must display at least one red warning flag on each side of the vehicle. The flag will need to be a minimum of 16 inches and in the shape of a square. All flags need to be mounted so that they are visible from both the front and the rear of the vehicle. You must remove all flags when you are not operating in the capacity of a escort or pilot car driver. The vehicle must be equipped with a stop slow sign, at least one orange safety vest, shirt or jacket, 124 inch hand held warning flag that is square and a two-way communication radio. All escort vehicles and pilot cars are required to be equipped with a flashing amber warning light. Flashing amber warning lights will need to be visible from the front, rear and side of the pilot car or escort vehicle. All pilot cars and escort vehicles will need to display a company’s sign on the side of the vehicle and nice clean and legible lettering which include your contact information. All escort vehicles and pilot cars will need to display legible signs that state oversize load visible from the front and the rear. This sign will need to be above the pavement a minimum of 4 feet and be completely legible from 45° from either side when read from the front or the rear. All lettering must be a minimum of 6 inches tall on a yellow background and be black in color with a minimum thickness of 1 5/8 of an inch. All signs must be a minimum of 440 square inches. At no time is a stop slow sign to be used from the window of a moving vehicle. All warning lamps will need to be covered when the pilot car or escort vehicle is not working.

Travel times.
The 24 hours a day seven days a week policy has been replaced with a 3 AM policy for movements during dark hours. When filing for permits be sure to request as much travel time as you wish as all they can do is modify it in accordance to their regulations. However if an escort or pilot car vehicle is required you will be subject to various curfews. If travel time is restricted note that sunrise means one half hour before the sun rises and sunset means up to one half hour after the sun sets. Shipments that are in excess of 12 feet in width are prohibited from traveling during the early morning hours and late afternoon hours in the greater San Diego, Los Angeles and San Francisco areas. Slow moving vehicle emblems must be displayed whenever a vehicle will be operated at speeds of less than 25 mph shipments that are 10 feet or more wide are not permitted to travel Monday through Friday during the following times in the following cities.

Greater Los Angeles: 6-9 am and 3-6 pm.
Greater Sacramento: 7-9 am and 4-6 pm.
Greater San Diego: 7-9 am and 4-6 pm.
Greater San Francisco in the Oakland Bay Bridge: 6:30-9 am and 3:30 – 6:30 pm.
San Francisco city limits: 7-9 am and 4-6 pm.

A California Highway Patrol is required when shipments in excess of 15 feet wide travel on two lane roads and up to 16 feet wide on yellow routes. Again depending on the size of your shipment and the desired route of travel there are all kinds of variances for travel times. There is even a subsection for what is called “variance loads” when a shipment is over 15 feet wide, 17 feet tall or over I hundred and 35 feet long or for hauling special equipment that exceeds the department standard method of weight classification which will need to be up proved by a special processing unit. Written route surveys are required under the circumstances from the applicant however the California Highway Patrol in coordination with the district traffic manager will determine the required hours of travel. If you are required to have an inspection performed by the permit office inspectors you can reach the vehicle inspectors at one of the following numbers: Southern California: 909-223-8860. Central California: 916-215-7937. Northern, CA 530-941-0121. Inspections usually require a minimum of 20 days before they are performed. If you need to speak to a headquarters equipment engineer you can call 916-653-4385.

General contact information for heavy haul and oversize trucking permits.
For service north of the Kern County or San Luis Obispo County lines the general phone number is 916-322-1297.
For service South of the Kern County or San Luis Obispo County lines the general phone number is 909-383-4637.
You can also contact them by email: northoversize-weightpermits@dot.ca.gov or southpermits@dot.ca.gov