30 CFR § 57.10008
Riding tramways
July 29, 2020
Persons other than maintenance persons shall not ride 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; and
(d) Buckets equipped with positive locks to prevent accidental tripping or dumping.