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Cal/OSHA Standards1
- Employers shall maintain copies of Material Safety Data Sheets (MSDS) for each hazardous substance2 in the workplace, and shall ensure that they are readily accessible to employees.
- Employers shall ensure that employees are provided with information on the contents of the MSDS to train them on how to use hazardous substances2 safely.
- Manufacturers shall develop an MSDS for each hazardous substance they produce. MSDS preparers shall update the MSDS within 3 months of learning new hazard data or ways to protect against hazards.
- Manufacturers shall ensure that purchasers of hazardous substances are provided an appropriate MSDS with their initial shipment, and with the first shipment after an MSDS is updated. Manufacturers shall either provide an MSDS with the shipment or send it to the purchaser prior to or at the time of shipment. If an MSDS is not provided, the purchaser shall obtain one from the manufacturer as soon as possible by sending a written request. If a purchaser is unable to obtain the MSDS within 25 working days, a copy of the written inquiry should be sent to: Division of Occupational Safety and Health, Deputy Chief of Health and Engineering Service, PO Box 420603, San Francisco, CA 94142-0603.
- The UC Office of the President maintains a website that allows investigators to search for an MSDS.
- An investigator may also send a written request to the manufacturer from which a hazardous substance was obtained (see item #4 above).
1CA Code of Regulations, Title 8, Ch. 3.2, Subchapter 2, Article 1, Section 340 (Contents and Posting Requirements of Cal/OSHA Notice); CA Code of Regulations, Title 8, Ch. 4, Subchapter 7, Article 109, Section 5194 (Hazard Communication)
2CA Code of Regulations, Title 8, Ch. 3.2, Subchapter 1, Article 5, Section 339 (The Hazardous Substances List)
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