We'll begin with defining "commercial vehicle," giving a general overview of "PIP" and "Med Pay," and then examining a few differences between the two as they relate to commercial vehicle insurance.
In general, a "commercial vehicle" is considered to be any vehicle used for business purposes. It can encompass a wide range, from your personal automobile in which you deliver your produce to the local farmer's market, to the trucks used for your construction company and beyond.
The definition may vary from state to state; it is imperative you check with your commercial vehicle insurance agent who knows your specific state regulations. For instance, Colorado defines a commercial vehicle as business vehicle which has a Gross Vehicle Weight Rating (GVWR) of over 10,000 pounds OR a gross combined vehicle weight (GCVW) of over 10,000 pounds. As an example of the latter, your business pick up may have a GVWR of 8,000 pounds with which you haul a 3,000 pound trailer. Your GCVW would then be 11,000 pounds which then meets Colorado's criteria for a "commercial vehicle".
Personal Injury Protection ("PIP") is coverage which will pay for medical expenses and lost wages for you (the insured) and your passengers injured in an accident. It may also pay for funeral expenses. PIP pays whether or not you are at fault. In general, PIP does not have to be repaid to your insurer, even if you recover from a 3rd party. It is required in 16 states and the U.S. Territory of Puerto Rico.
Medical Payments ("Med Pay") is an optional coverage which will pay for medical expenses for you (the insured) and your passengers injured in an accident. Med Pay has no coverage for lost wages. It must be paid back to your insurer if you recover from a third party.
What are a few differences between PIP and Med Pay for commercial vehicle insurance?
Some commercial vehicle insurance policies do not have PIP coverage.
Depending on your state's regulations (for example, in Florida), subrogation of PIP payments are allowed if the insured's vehicle is a "commercial motor vehicle". Check with your insurance agent for your specific commercial insurance needs.