RSA 266:108: Wrecker Safety Chains.

Every wrecker shall be equipped with an additional safety chain with minimum requirements of 3/8 inch HY-TEST chain for towed vehicles up to and including 11,000 pounds gross vehicle weight, and 1/2 inch HY-TEST chain for towed vehicles over 11,000 pounds gross vehicle weight. This safety chain shall be used at all times when the wrecker has a vehicle in tow upon a way, for the purpose of keeping the towed vehicle under control in the event the normal hook-up malfunctions. All wreckers shall operate within the recommended manufacturer's safety policies and procedures.