After calling the inspector, he indicated the install is under the authority of building code. Thus, the installer is responsible for the hook-up of the equipment. Later a elevator inspector signs off on the install.
Now you are testing my memory, cause I installed that chair lift many years ago. I believe there was a very short cord on the equipment and I had to install the receptacle in a very specific spot. The installer of the chair lift told me right where he needed the receptacle. The cord ( I think) was only 1-2 foot long.