Genie makes a variety of lifts – scissors lifts, boom lifts, elevated work platforms – so use the term “Genie lift” cautiously. The “Genie” at one facility may not be the type of “Genie” at another facility.
US OSHA rules (29 Code of Federal Regulations) can be somewhat confusing for this general equipment primarily because scissors lifts fall under the “scaffolding” regulations, but all of the other lifts fall under the “aerial lift” regulations. The most significant difference as I understand it is that a scissors lift with proper railings is considered to meet the fall protection standard and tieing-off or providing personal fall protection is not necessary. All of the other lifts require some sort of tieing off. (Ladders are under a separate set of rules.)
For all practical purposes, if the lift is occupied and extended, it must not be moved. (There is a very narrow range of exceptions.) An occupied ladder must not be moved.
It appears that a tallescope used in the US, with its extending boom, is under the US OSHA aerial lift regulations, and therefore, cannot be moved if it is occupied.
http://www.osha.gov/From 29 CFR 1926:
1926.452(w) [Mobile scaffolds] (6)
Employees shall not be allowed to ride on scaffolds unless the following conditions exist:
1926.452(w)(6)(i) The surface on which the scaffold is being moved is within 3 degrees of level, and free of pits, holes, and obstructions;
1926.452(w)(6)(ii) The height to base width ratio of the scaffold during movement is two to one or less, unless the scaffold is designed and constructed to meet or exceed nationally recognized stability test requirements such as those listed in paragraph (x) of Appendix A to this subpart (ANSI/SIA A92.5 and A92.6);
1926.452(w)(6)(iii) Outrigger frames, when used, are installed on both sides of the scaffold;
1926.452(w)(6)(iv) When power systems are used, the propelling force is applied directly to the wheels, and does not produce a speed in excess of 1 foot per second (.3 mps); and
1926.452(w)(6)(v) No employee is on any part of the scaffold which extends outward beyond the wheels, casters, or other supports.
1926.1053 Ladders.
(b)[Use]…(11) Ladders shall not be moved, shifted, or extended while occupied.
Didn’t have a chance to copy the aerial lift regulations on the subject, but that can be readily found at the OSHA site.
Joe