30 CFR §77.1602
Persons other than maintenance men shall not ride empty buckets on aerial tramways unless the following features are provided:
- (a)Two independent brakes, each capable of holding the maximum load.
- (b)Direct communication between terminals.
- (c)Power drives with emergency power available in case of primary power failure.
- (d)Buckets equipped with positive locks to prevent accidental tripping or dumping.