Originally Posted by Forest Grump
Sorry but in states with chain controls in effect you can have snow tires on a 4x4 or AWD under R2 conditions. Under R3 everyone must chain up including 4x4 and AWD. You also must carry chains at all times that fit you vehicle on roads covered by chain controls. So if you are coming up to run in the snow with your 37 x 12.5 Jeeprubicon you better have chains that fit. The CHP will turn you around if not or worse.
75 years in upper Midwest, Traverse City and mountain snow, 4 years of Arctic snow.
When I was a young military man ending my stint I was stationed at White Sands Missile Range (WSMR) in New Mexico for my last year. The mountain pass between our post and Las Cruces (St. Augustine Pass) could sometimes have a blizzard but we were in the 50's down in the valley. When the civilian wreckers got buried they called on us with our 10-ton tactical wreckers to work the pass getting semi trucks and others safely down and out of ditches.
What I remember about those times was how dangerous it was for everyone involved. I didn't want to be up there where I couldn't see 20 feet in front of my wrecker and I didn't understand why the civilian population thought they needed to drive through there under those conditions. I've traveled several times out west, including California. I have seen all the signs about chains and observed all the pull off areas marked as "chain up" lanes. I can tell you will 100% conviction that I will never own a set of chains for my RV because under no circumstances will I ever be in an area that I will need them.