Cal. Code of Regs., Title 8, section 5194: Hazard Communication

(8) The employer is not required to label portable containers into which hazardous chemicals are transferred from labeled containers, and which are intended only for the immediate use of the employee who performs the transfer. (9) The employer shall not remove or intentionally deface existing labels on incoming containers of hazardous chemicals, unless the container is immediately marked with the required information. (10) The employer shall ensure that workplace labels or other forms of warning are legible, in English, and prominently displayed on the container, or readily available in the work area throughout each work shift. Employers having employees who speak other languages may add the information in their language to the material presented, as long as the information is presented in English as well. (11) Manufacturers, importers, distributors, or employers who become newly aware of any significant information regarding the hazards of a chemical shall revise the labels for the chemical within six months of becoming aware of the new information. Labels on containers of hazardous chemicals shipped after that time shall contain the new information. If the chemical is not currently produced or imported, the manufacturer, importer, distributor, or employer shall add the information to the label before the chemical is shipped or introduced into the workplace again. (g) Safety Data Sheets. (1) Manufacturers and importers shall obtain or develop a safety data sheet for each hazardous chemical they produce or import. Employers shall have a safety data sheet for each hazardous chemical which they use. Note to (g)(1) : Employers should also refer to section 3204 concerning information to be retained after a particular chemical is no longer in use. (2) The manufacturer or importer preparing the safety data sheet shall ensure that it is in English (although the employer may maintain copies in other languages as well) and includes at least the following section numbers and headings, and associated information under each heading, in the order listed (See Appendix D to section 5194—Safety Data Sheets, for the specific content of each section of the safety data sheet): (A) Section 1, Identification; (B) Section 2, Hazard(s) identification; (C) Section 3, Composition/information on ingredients; (D) Section 4, First-aid measures; (E) Section 5, Fire-fighting measures; (F) Section 6, Accidental release measures; (G) Section 7, Handling and storage; (H) Section 8, Exposure controls/personal protection; (I) Section 9, Physical and chemical properties; (J) Section 10, Stability and reactivity; (K) Section 11, Toxicological information; (L) Section 12, Ecological information; (M) Section 13, Disposal considerations; (N) Section 14, Transport information; (O) Section 15, Regulatory information; and (P) Section 16, Other information, including date of preparation or last revision. (Q) A description in lay terms, if not otherwise provided, on either a separate sheet or with the body of the information specified in this section, of the specific potential health risks posed by the hazardous chemical intended to alert any person reading the information.