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 California Code of Regulations (Last Updated: August 6, 2014)
 Title 8. Industrial Relations
 Division 1. Department of Industrial Relations
 Chapter 4. Division of Industrial Safety
 Subchapter 7. General Industry Safety Orders
 Group 2. Safe Practices and Personal Protection
 Article 7. Miscellaneous Safe Practices

  § 3317. Illumination.  

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  • (a) Working areas, stairways, aisles, passageways, work benches and machines shall be provided with either natural or artificial illumination which is adequate and suitable to provide a reasonably safe place of employment. Minimum illumination levels for safety alone are listed for various typical areas in Table IL-1. (Title 24, Part 2, Section 512, Table 5-C.)
    TABLE IL-1
    MINIMUM LEVELS OF ILLUMINATION FOR SAFETY
    Hazards Requiring
    Visual Detection
    Slight
    High
    Normal Activity
    Level
    Low
    High
    Low
    High
    Areas
    Storage Yards
    Loading Areas
    Elevators
    Engine Rooms
    Offices
    Warehouses
    Stairways
    Processing Areas
    Locker Rooms
    Corridors
    Assembly Areas
    Machine Shops
    Washrooms
    Layout Areas
    Sheet Metal Works
    Spray Booths
    Woodworking Shops
    Inspection Areas
    Footcandles
    0.5
    1.0
    2.0
    3.0
    Image 1 within § 3317. Illumination.​
    Notes:
    (1) To assure these levels at all times, higher initial levels need to be provided to compensate for their depreciation due to the decrease of light output of lamps with age and to the accumulation of dirt on lamps and room surfaces.
    (2) For areas or operations not covered above, and for recommended illumination levels for efficient visual performance in varied tasks and areas, refer to ANSI/IES RP-7-1991, Practice for Industrial Lighting and ANSI/IES RP-1-1993, Practice for Office Lighting. (Title 24, Part 2, Section 512, Table 5-C.)
    (b) When adequate natural illumination or permanent artificial illumination cannot be made available to secure the safety of employees, suitable portable lights shall be provided.
    (c) Skylights, side windows, lamps, and other light accessories which provide necessary illumination shall be kept sufficiently clean, adjusted, and repaired so as not to impair the illumination required for the safety of employees.
HISTORY
1. Amendment of subsection (a) filed 11-28-75; effective thirtieth day thereafter (Register 75, No. 48).
2. Amendment filed 7-16-76; effective thirtieth day thereafter (Register 76, No. 29).
3. Editorial correction filed 10-7-83; effective thirtieth day thereafter (Register 83, No. 41).
4. Amendment of subsection (a) and footnotes to Table filed 2-11-99; operative 3-13-99 (Register 99, No. 7).

Note

Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code; and Section 18943(c), Health and Safety Code.