California Code of Regulations
Title 8 - Industrial Relations
Division 1 - Department of Industrial Relations
Chapter 4 - Division of Industrial Safety
Subchapter 4 - Construction Safety Orders
Article 3 - General
Section 1523 - Illumination

Universal Citation: 8 CA Code of Regs 1523

Current through Register 2024 Notice Reg. No. 38, September 20, 2024

(a) Construction areas, ramps, corridors, offices, shops and storage areas, etc., shall be lighted to not less than the minimum illumination intensities in the following Table while work is in progress.

Minimum Illumination Intensities In Foot-Candles

Foot-CandlesArea or Operation
3..........................General construction area lighting low activity.
5..........................Outdoor active construction areas, concrete placement, excavation and waste areas, accessways, active storage areas, loading platforms, refueling, and field maintenance areas.
5..........................Indoors: warehouses, corridors, hallways, stairways, and exit-ways.
10..........................General construction plant and shops (e.g., batch plants, screening plants, mechanical and electrical equipment rooms, carpenter shops, rigging lofts and active storerooms, barracks or living quarters, locker or dressing rooms, mess halls and indoor toilets and workrooms).
10..........................Nighttime highway construction work.
30..........................First-aid stations, infirmaries, and offices.

NOTE: For areas or operations not covered above, refer to the recommended illumination values contained in the Illuminating Engineering Society (IES) of North America, Committee on Industrial Lighting, American National Standard, (ANSI/IES) Practice for Industrial Lighting, Publication RP-7-1991.

(b) Nighttime highway construction work lighting shall be provided within the work zone to illuminate the task(s) in a manner that will minimize glare to work crews and not interfere with the vision of oncoming motorists (e.g. providing screens, mounting lamps below the top edge of the barrier wall, varying the beam angle, etc.)

1. Repealer and new section filed 7-12-74; effective thirtieth day thereafter (Register 74, No. 28).
2. Amendment filed 5-21-75; effective thirtieth day thereafter (Register 75, No. 21).
3. Repealer and new section filed 11-14-75; effective thirtieth day thereafter (Register 75, No. 46).
4. New NOTE filed 9-27-85; effective thirtieth day thereafter (Register 85, No. 40).
5. Redesignation and amendment of existing section as subsection (a) and new subsection (b) filed 7-13-2004; operative 8-12-2004 (Register 2004, No. 29).

Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.

Disclaimer: These regulations may not be the most recent version. California may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.