Complete information regarding an alteration which affects the design, structural strength or operation of a passenger ropeway or which replaces any piece of major equipment of a passenger ropeway shall be kept at the passenger ropeway site. The information shall be open to inspection by the department or a third party independent inspector.
Wis. Admin. Code Department of Safety and Professional Services SPS 333.11
Examples of alterations include the ropeway modifications listed in ANSI B77.1 section 1.2.4.4.