Table 7.9 – Power Operated Doors for Platform Lifts
Current Guidelines:  
4.13.1  Doors.  Doors required to be accessible by 4.1 shall comply with the requirements of 4.13.

4.13.6  Maneuvering Clearances at Doors.  Minimum maneuvering clearances at doors that are not automatic or power assisted shall be as shown in Fig.25.

Final Revised Guidelines:  
410.6  Doors and Gates.  Platform lifts shall have low-energy power-operated doors or gates complying with 404.3.  . . .
Exception:  Platform lifts serving two landings maximum and having doors or gates on opposite sides shall be permitted to have self-closing manual doors or gates. 

Model Codes & Standards
ICC/ANSI A117.1-1998:  Section 408.2 has a similar requirement for power operated doors on platform lifts.