Originally Posted by caper
We were told this when we planning on going through Washington State. We called the DOT and asked them what axles needed chains when towing a TT. The said all axles needed chains including the TT.
I think someone gave you bad info. I checked the regs at his link - WSDOT - Minimum Chain Requirement
- It is for rigs over 10,000 gross,, which would include many of us (although it does imply commercial rigs).
Take a look at the PDF for chain placement. The placement of chains for various axle configurations is pretty interesting and addresses the OPs original question to some degree - they only put a chain on one side of the most rear axle of the trailer. That surprised me.
In WA, you do not need chains if you have 4wd or AWD plus mud and snow tired, even when the chains required signs are out. I do not even have chains for my Ridgeline even though it has taken me skiing many times.
Bottom line is that if I need chains, I am not going.