From the IMBA website:
"At long last, the U.S. National Park Service (NPS) has proposed a rule change which will make it easier for parks to open trails for mountain biking. IMBA urges mountain bikers to register comments in support of the rule change. IMBA has been asking for this change since the 1990s. We now enter a 60-day commentary period to make the change official."
This is good news, but there is opposition and IMBA has asked for help to ensure that the change remains in tact.
I just filled out this quick form:
Take Action Now!
More information can be read here:
IMBA News: Action Alerts: Take Action to Increase Opportunities for Bicycling in National Parks (12-18-08)
The Youtube video is here:
YouTube - "Support! National Park Service Rule Change 36 CFR 4.30"
Cheers!