OSHA Minimum Lighting Requirements
|• Part Number:||1926|
|• Part Title:||Safety and Health Regulations for Construction|
|• Subpart Title:||Occupational Health and Environmental Controls|
|• Standard Number:||1926.56|
General. Construction areas, ramps, runways, corridors, offices, shops, and storage areas shall be lighted to not less than the minimum illumination intensities listed in Table D-3 while any work is in progress:
TABLE D-3 - MINIMUM ILLUMINATION INTENSITIES IN FOOT-CANDLES ____________________________________________________________________ Foot-Candles | Area of Operation 5............. | General construction area lighting. 3............. | General construction areas, concrete placement, | excavation and waste areas, access ways, active | storage areas, loading platforms, refueling, and | field maintenance areas. 5............. | Indoors: warehouses, corridors, hallways, and | exitways. 5............. | Tunnels, shafts, and general underground work areas: | (Exception: minimum of 10 foot-candles is required | at tunnel and shaft heading during drilling, | mucking, and scaling. Bureau of Mines approved cap | lights shall be acceptable for use in the tunnel | heading) 10........... | General construction plant and shops (e.g., batch | plants, screening plants, mechanical and | electrical equipment rooms, carpenter shops, | rigging lofts and active store rooms, mess halls, | and indoor toilets and workrooms.) 30........... | First aid stations, infirmaries, and offices. ___________________________________________________________________
Other areas. For areas or operations not covered above, refer to the American National Standard A11.1-1965, R1970, Practice for Industrial Lighting, for recommended values of illumination.
NOTE: OSHA is a minimum. Alternately, 30 to ~50 footcandle is a higher range, based on the Illuminating Engineering Society of North America (IES) recommendations for office areas and tasks.
Emergency Stair Ways and Egress Routes