& Backcountry ski-board-climb-hike entrance controls..any ? 5/8/06

Trying to survey and publish what controls, if any, exist in USA and/or
Canada re subject.
If contols do exist:
1 What are they,
2 Who enforces whatever controls their are,
3 Is pass/fee/photo registeration required,
3 What penalties are mandated: warning citation, fines, jail-time, etc.
4 Who pays for the rescue expenses of search personnel, snowmobiles,
trucks, helicopter services, EMT, police and hospital services.
5 State of Nevada created back-country control legislation last year
which imposed both a fine and jail-time. Results so far have been
inconclusive for many reasons.

Help/suggestions much appreciated.