For private use, no. If it's a vehicle or part of a combination which had a Gross Vehicle Weight Rating/Gross Combined Weight Rating of more than 26,000 lbs., and it was being operated on a for-hire basis (e.g., transporters delivering it to a dealership), then yes.
Registered recreational vehicles and motor homes are exempted from CDL requirements.
No, you don't. RVs are exempted from CDL requirements. Your state, however, may require that you upgrade your licence if the vehicle is over 26,000 lbs. GVWR.
Only if you're operating it on a commercial, for-hire basis. For personal use, recreational vehicles are exempt from CDL requirements by the FMCSA.
No. California does, however, have non-CDL class A and B licenses which are required for non-commercial vehicles over 26,000 GVWR.
That depends on the purpose of the vehicle, and the Gross Combination Weight Rating. If it's for commercial use, and the GCWR exceeds 26,000 lbs., then yes, you'll need a CDL. If it's a registered RV, then no - RVs are exempt from CDL requirements.
For private use, no state requires a CDL for an RV.
Air brakes are entirely irrelevant as far as whether or not that vehicle needs a CDL is concerned. The only time you need a CDL to drive an RV is when you're operating it on a for-hire basis, either as a driver for hire or as a transporter.
That depends. If it's a commercial use vehicle and the Gross Combination Weight Rating of the two vehicles is in excess of 26,000 lbs., then yes. If it's something like an RV trailer being used for personal recreational use, then no. The length of the trailer is irrelevant.
you don't need a special license to drive an RV just a regular drivers license
You just need a regular drivers license to drive an RV Class A in Virginia.
The following website can help you determine what kind of insurance you'll need with a trailer or an RV, such as liability and roadside assistance. http://internet-trailer.com/RV-Insurance.aspx
Mobile home, trailer, RV.Mobile home, trailer, RV.
If the GVW of those trailers exceeds 10,000 lbs. and the GCW of the entire combination exceeds 26,000 lbs., yes. A current production one ton truck typically has a GVW of around 13,000 lbs. So any RV trailer with a GVW in excess of 13,000 lbs. will require a CDL when being hauled on a commerce basis.