Insurance for Tow Truck Operators
A tow operator answers for three things at once: the truck on the freeway, the car on the hook and every vehicle behind the yard fence. We look for tow truck insurance that meets the CHP rotation table and your city contracts, and the insurer decides after reviewing your trucks, drivers and mix of calls.
Tow truck insurance for the CHP rotation list
CHP’s Rotation Tow Program runs on a Tow Service Agreement, currently the 2026-2027 TSA dated July 2026. Section 14 sets the insurance an operator carries, from an insurer admitted in California or admitted in the home state and authorized here:
- Auto liability, combined single limit: at least $750,000 for Class A trucks and $1,000,000 for Classes B, C and D, including hired and non-owned auto.
- Uninsured motorist at the legal minimum.
- On-hook: $50,000 for Class A, $100,000 for Class B, $200,000 for Class C and $250,000 for Class D.
- Garage liability for premises and operations: at least $500,000.
- Garagekeepers legal liability for the storage yard, at the same minimum as on-hook.
Proof is required for every storage facility listed on your CHP 234A.
Truck classes and why the numbers climb
The TSA sorts trucks by manufacturer GVWR. Class A light duty needs at least one truck of 14,000 lbs or more; four-wheel-drive trucks under that weight have been allowed as special equipment for 4WD recoveries since June 30, 2006. Class B medium duty starts at 33,000 lbs with air brakes and a tractor protection valve, Class C heavy duty is a three-axle truck of at least 52,000 lbs, and Class D super heavy duty a three-axle truck of at least 54,000 lbs. The on-hook minimum rises fivefold from Class A to Class D, tracking the size of what each class tows.
Certificates, cancellation notice and a lapse
CHP accepts proof only as a certificate of insurance, not a copy of the policy, and the policy must give CHP at least 30 days’ written notice of cancellation or expiration. Letting a minimum lapse nullifies the TSA immediately, removes you from the rotation list and opens discipline. Send us the TSA pages and your 234A when a policy renews so each certificate matches the yards and limits on file; our certificate of insurance guide shows what CHP reads.
On-hook and garagekeepers: the car you tow and the cars you store
Your auto liability pays for people and property your truck hits. It does not pay for the car you are towing, because general liability and business auto exclude property in your care, custody or control. A sedan sliding off the deck, a bumper torn while winching or a quarter panel scraped at drop-off is an on-hook loss. A car vandalized, stolen or damaged in your impound lot is a garagekeepers loss. Both are covers we ask insurers about, and carriers offer legal liability or direct options; ISO-based programs use an on-hook endorsement, CA 04 52, for towers without garage locations.
Damage to the tow trucks themselves is physical damage under commercial auto, valued truck by truck.
City contracts and motor club agreements
Police rotation lists and city franchises set their own limits, and $1,000,000 combined single limit is common: Patterson’s tow ordinance and a Pleasanton tow contract both use it. Motor clubs set their own terms; $1,000,000 of liability and $100,000 of on-hook are figures commonly cited for motor club work, so read your club agreement for the exact numbers. When a contract asks for more than your auto policy carries, a commercial umbrella adds limits on top.
Accident scenes, impounds and the Vehicle Code
Vehicle Code 22513 bars stopping at a crash or a disabled car to solicit work unless the owner or a public agency asked for you. When the owner is present, you give an itemized written estimate and get a signature before hooking up, keep records three years, and face up to a $2,500 fine for willful violations.
Private-property impounds under VC 22658 need written authorization from an owner or agent who is present, signs of at least 17 by 22 inches at every entrance, and police notice no later than 60 minutes after removal. Storage sits within 10 miles, takes cash and credit cards, and a vehicle reclaimed before it leaves the property must be released, for no more than half the tow fee if it is already hitched. The tow company answers for damage in transit and storage and for towing the wrong car, and unauthorized tows carry civil liability of four times the charges. Ask how a garage liability policy treats a wrongful-tow claim before you take on private-property work, and see general liability for the premises side.
Drivers, screening and workers’ comp class 7227
Rotation drivers are fingerprinted through Live Scan, enrolled in a drug and alcohol testing program and trained through a TSAAC-approved course within five years, plus FHWA Traffic Incident Management training. Freeway service patrol drivers also carry a DMV tow truck driver certificate under VC 12520, valid up to five years. State Fund’s towing questionnaire shows what underwriters ask: shifts over 11 hours, repossession, hazmat and cliff or underwater recoveries, and how much work is freeway versus private impound.
WCIRB class 7227 covers towing, roadside assistance and freeway service patrol on vehicles you don’t own, including cashiering and yard retrieval tied to impounds. Its pure premium rate is $7.919 per $100 of payroll from September 1, 2026, about 2.4 times the 8389 repair rate, and a driver struck beside live traffic is the claim workers’ comp has to be ready for. Repair work goes in 8389; our mobile mechanic page covers it.
What tow truck insurance costs
Progressive Commercial publishes figures for its tow customers: a median of $355 a month and an average of $606 a month, based on 2025 new policy premium per power unit for liability and physical damage, on policies with no driver violations. They are national, not Californian, and published industry data rather than a Mithril1 quote. The median is the closer guide for a small operator with clean drivers at standard limits; the much higher average shows how far some operators’ premiums run above it.
Auto is priced per truck, so three trucks at the $355 median come to $1,065 a month, or $12,780 a year, before on-hook, yard coverage and comp. Comp at the 7227 pure premium rate on $200,000 of driver payroll is $15,838 ($200,000 / 100 x $7.919), and insurers file their own, typically higher, rates.
Premiums run higher with Class C and D trucks, freeway rotation calls, higher on-hook and yard limits, repossession or private-property impounds, long shifts and driver violations. They run lower with clean motor vehicle records, trip tracking on every truck, documented training, photos at hookup and drop-off, and a secured, lit, fenced yard. The insurer decides after its review.
A few useful answers
Common questions
What tow truck insurance does the CHP rotation program require?
Under the 2026-2027 TSA: auto liability of $750,000 for Class A and $1,000,000 for Classes B to D, on-hook from $50,000 to $250,000 by class, $500,000 garage liability, and yard garagekeepers at the on-hook minimum.
What is the difference between on-hook and garagekeepers?
On-hook answers for a customer’s vehicle while it is hooked up, loaded or in tow. Garagekeepers answers for vehicles in your storage yard. CHP asks for both at the same minimum.
Does my auto liability cover the car I am towing?
No. Auto liability pays for others your truck injures or damages. The towed car is in your care, which is why on-hook coverage exists.
What happens if my tow policy lapses mid-term?
Under the TSA, failing to keep the minimums nullifies the agreement immediately and removes you from rotation. The policy must give CHP 30 days’ written notice before it cancels.
Can a towing company get coverage through Mithril1?
It can, provided an insurer accepts the risk after reviewing your trucks by class, drivers, yard and call mix. We request the auto, liability and comp lines and ask insurers about on-hook and yard cover at the limits your contracts set.