Here are some additional details to consider:
1. Federal Regulations: According to the Federal Motor Carrier Safety Regulations (FMCSRs), a tanker endorsement is required to operate a commercial motor vehicle that is designed to transport hazardous materials in a bulk liquid or gaseous state. However, this requirement applies to vehicles that are transporting hazardous materials, not to empty trailers.
2. State Regulations: Some states may have their own laws that require a tanker endorsement for pulling any trailer that is designed to transport hazardous materials, even if the trailer is empty. For example, California requires a tanker endorsement for operating any commercial motor vehicle that is designed to transport flammable liquids, regardless of whether the tank is empty or full.
3. Hazmat Placards: If an empty trailer is placarded for hazardous materials, it is generally considered to be a hazardous materials vehicle and may require a tanker endorsement, depending on the state regulations.
It's important to note that these are general guidelines and the specific requirements can vary from state to state. To ensure compliance with the law, it is always best to consult with your state's DMV or the relevant transportation authority to determine the specific regulations that apply to pulling an empty trailer in your jurisdiction.
