If you're headed into Oregon, read the chain requirements first. Note that trailers with brakes require chains on one trailer axle.
https://tripcheck.com/Pages/Minimum-Chain-Requirements
(Edit: if you're from Calif. pay particular attention. While driving through OR, not in snow conditions, but during winter, we were queried about chains. We had chains in the vehicle for our tow vehicle, and also some cable chains for the trailer, so... were not cited.)