Yes
No. 49 CFR Parts 300 to 399 do not mention a requirement to have an a/c system in the cab of a property carrying tractor CMV.
It depends on the state, there are a few stated that require all commercial vehicles to have AC however, most do not require it.
2 years
A valid drivers license and a DOT medical card.
Companies operating CMVs are subject to DOT audits, where records, logs, and time cards are examined.
There's no logo requirement on a commercial vehicle. On a Class 8 tractor--a semi--you need the license plate (base plate) and either a DOT number or "not for hire." You can put "not for hire" on a truck that is not used in commerce, like the tractor that pulls a race team's trailer. Everyone else must have a DOT number. But as far as logos go, you don't need to have a logo on your truck.
commercial for com
A USDOT number is an identifying number assigned to commercial vehicles engaging in interstate commerce. All such vehicles are required by the FMCSA to have a unique USDOT number, which is used during things like audits and crash investigations.
DOT certifies commercial drivers to haul hazardous materials. The certificate requires that the applicant pass a test and a background investigation.DOT also certifies that vehicles meet certain safety standards. If you buy a vehicle in Europe and want to bring it to the States it must comply with the DOT requirements. Likewise, home-built vehicles must be certified to comply before they can be titled and licensed for public roads.The DOT certification on a compressed gas cylinder is stamped into the metal on the shoulder of the cylinder. It shows that the cylinder passes certain tests and was manufactured to comply with DOT requirements.
18. You could even be employed as a CDL driver at 18 (although you'd be restricted to operating commercial vehicles within the state).
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