For all Indiana operators, and probably most everyone else soon, if not already: The Motor Carrier Safety Act of 1984 is known for the requirement of CDL for vehicles and vehicle combinations over 26,000 lbs Gross Vehicle Weight Rating (GVWR). Indiana and most other states have adopted the requirements of MCSA. One of the requirements, now in effect in IN, but not being actively enforced at present, is that commercial vehicles (and combination vehicles) over 10,000# GVWR must meet certain requirements. Applies to most of us: a 1/2 to 3/4 ton truck has a GVWR of 7000# to 9000#, and a daul axle trailer (usually 2 3500# axles) has a GVWR of 7000#. This is based on the manufacturers GVWRs for truck and trailer, not the weight you are actually running. Some of the regs for IN guys: 1- must have a DOT number, and display it on vehicle. 2- must have an annual certified inspection of truck and trailer, with inspection certificate(s) available if asked. 3- Driver must have on person a valid medical examiners certificate. This is just a short card, but is based on a 5-page physical administered by a licensed medical examiner. Don't need to carry the whole 5 pages like a CDL driver. 4- fire extinguishers required on vehicles: at least a 5:B,C (I think it was) in proper state of charge. 5- safety triangles for breakdowns required to be carried. ISP Motor Carrier Inspector gave a talk about it at the IPLLA field day yesterday. Got a bunch of handouts, but not complete info, and can't find anything concise on the web yet. Sounds like a great winter project to get into compliance, in case enforcement starts soon. The inspector said the fewest violations he has found on our size vehicle combos is 6-8, but he often gets 2 dozen violations in one stop. One important note: we all know the lower rated trailer plates are cheaper. You can legitimately put a 3000# plate on a 7000# trailer. But if he gets out his scales, and you are over the plate rating, your trailer is immediately impounded (towed by some officers), until you return to get it with the proper rated plate.