Motor vehicles; requiring motor carriers only tow insured trailers; requiring motor carrier make certain verification of insurance; effective date.

HB 3300 requires Oklahoma motor carriers to verify that trailers they tow have active liability insurance before use, using methods like certificates, electronic systems, or written confirmations. Carriers must retain verification documentation for two years and provide it to state agencies upon request. If an accident occurs involving an uninsured trailer they failed to verify, the law creates a rebuttable presumption of negligence against the carrier, unless they prove they conducted reasonable verification. This directly affects commercial trucking companies operating in Oklahoma, mandating new insurance checks to reduce liability risks for uninsured trailers.