Oregon Chains, way too long...
I drive a comuter bus over Government Camp Pass on Mt Hood two to three times a week. Oregon chain laws are simuliar to WA I think.
During the winter the pass warning signs say "carry chains or use traction tires"
When it gets really bad which means the snow has packed to a hard slick surface or it is powder and snowing so hard the plows and sanders can't keep up (yes! powder day!!) Then the nest stage is "chains Requried on vehicles over 10k # or any one pulling a trailer"..including sleds horses etc.. The next stage is chains required or "traction tires", which means studs or the tires that have the little mountian emblem with the snow flake in it. If you do not have traction tires you must run chains..even if you have big ole MTs on, (BFG ATs are "traction rated").
The next stage is "road closure" nobody gets through with out the proper size chains on board the rig or they may make you put them on, NO MATTER WHAT KIND OF TIRES YOU HAVE OR WHAT YOU ARE DRIVING. No chains: you are trurned back or told to "sit" if it is that bad. At a road closure there will be someone out there to check every car/truck. This happens several times a year on I-5 down south in Oregon where the hwy goes up over 4k ft to cross the Siskiyou Summit. On Mt hood and at other resort areas it happens too, get a few pile ups going then no one can get around the wrecks with out causing another one..they shut the road down..period. (happened Last Thursday in light snow, sut down for 6 hrs cause a lady in a Heep liberty slidinto a tractor trailer (who had chains on) killed the lady blocked the road) The State Patrol are not the only authority that can ticket you or stop you. The Highway Dept guys, snow plow sandtruck, and the supervisiors can turn you in or stop you and cite you for driving with out chains, truckers can radio or call the police or who ever and get you stopped too, their not going sking they are trying to get over the mt, they (I) think people or fools that don't slow down in that kind of conditions, you are not that good of a driver..
..Last year it was a $150 ticket..I've never heard of any one getting out of it. If you are in a wreck and do not have the proper level of traction device in use..you just bought sombodies repair bill, or worse if you hurt someone, even if the other guy did something stoopid..
Most of the rigs I see in the ditch or in pile ups are four wheel drives like cruisers and all the other "SUV" types. That four Wheel Drive does not do a thing for you on packed snow (forget about ice) except maybe get you going faster..will not help you stop or do avoidance manuvering.. I've been sitting still and had the bus slide off the road. If the truckers are chaining up You better at least slow down and stay with them. It means it is slick enough the state is worried about the trucks stopping, as much as they are worried about them getting going. Good truckers don't wait for the state to call for chains..
Your chains are fine with the rubber deals on them, the Boomers or what ever in the above post are (in the U.S.) called "Cam" adjusters. They are used to tighten up a really large diameter chain on a really large tire. If you pull the chains as tight as you can then drive a few feet and see if you can catch another link then put the tensioning clips on around the wheel, be sure and catch the slack chain end with it or a seperate bungee to keep it from banging your wheel well, The inside slack should not be more than three links or it will bang around too. Always carry a few bungee cords to help with tensioning the chain on the wheel nylon ties are good to for quick short duration repairs.
If you drive over 40 you are nuts and the chains will start to try to work off.
Putting chains on front is good in mud when you are trying to crawl over stuff at slow speed. It seems people, usually kids, put them on front in snow cause it is easier to reach and it looks "cool". IMHO not the way to go, the rear end of your rig will come around if you stop on a off camber or banked turn (or even a slanted road bed) Braking in a trun can get difficult too. I'd rather have the front end slip a little off then have the rear end come around. Some people swear by putting them on the front..most have not really had to drive very far in snow/ice. Don't think you'll see many "old timers" doing it. Front wheel drive or awd with primary front drive, Volvo, Honda, and many other passenger AWD systems you have to go front wheels with them.
If it is really bad and you have to go into the ditch to get around the wrecked fools, then chains all around would be good. If it is that bad they will be closing the road anyway though.
lastly with the chains on you can dodge the dumbasses that think they are the best drivers in the world in the best 4X4 in the world (wouldn't that be most of us Mudders?) that is gonna blow on up the mt around all the fools and truckers acting like pussies on a little packed snow..It is worth the time to chain up.
But hell what do I know..I'm a old, overly cautious grey beard that an't in no rush for nuttin not even a powder day....