(a) Before any hoistway shall hereafter be constructed, the architect, owner or contractor shall file with the Department of Labor two sets of plans showing its location and construction, and on forms provided by the Department of Labor specifications in triplicate of hoistway, hoistway gate and door construction.

(b) Before any elevator, dumbwaiter or escalator shall hereafter be installed, the architect or contractor for such work or the owner if making such installation shall file with the Department of Labor, two sets of plans showing the location of machinery and equipment to be installed and on forms provided by the Department of Labor specifications in triplicate of the following: capacity and speed, weight of car complete, method of operating, type of limiting stops and switches, diameter of sheaves, size and number of hoisting and counterweight ropes, type of speed governor and safeties, overhead and pit clearances, type of buffers, machine and overhead grating, and the construction of hoistway doors or gates and car doors or gates when required.

(c) No elevator, dumbwaiter or escalator shall hereafter be installed without approval of the plans and specifications of the installation and hoistway construction by the Department of Labor.