August 27, 2014:
Special Use Permits from the National Park Service at the Grand Canyon will now be required for all rim-to-rim, non-commercial groups. The NPS cites the increased useage of the trail systems, and hopes to reduce trail conflicts. An estimated 800 hikers per day are on the trails during peaks weekend days in spring and fall in the Park. Groups that will need permits include non-profits and clubs, and hikers and runners on extended day trips. Commercial rim-to-rim day trips will not be authorized.