(1) RETENTION OF INFORMATION; LISTS. Except as provided by department rule under s. 101.598, an employer shall: (a) Retain any material safety data sheet relating to a toxic substance and containing the information required to be provided to employees under sub. (2) for 30 years after the date upon which the employer last received the toxic substance in the workplace; or (b) 1. Maintain a written list identifying any toxic substance present in a workplace on or after May 10, 1984, except as provided in subd. 2., and the dates that the toxic substance is present in the workplace. If a list is maintained, each toxic substance required to be on the list shall be included on the list until 30 years after the last date on which the substance is received in the workplace. Within 30 days after a written request by an employee or employee representative, exclusive of weekends and legal holidays, the employer shall provide to the employee or employee representative a copy of any list maintained for the employee’s workplace or the workplace of the employees represented by the employee representative. 2. a. A toxic substance need not be included on a list if in the area in which any employee usually works the toxic substance is received in packages of one kilogram or less and if no more than 10 kilograms of the toxic substance are used in or purchased for that area per year. b. A toxic substance need not be included on a list if it is a mixture containing one or more mineral dusts listed in 29 CFR 1910.1000, table z-3. (1m) SMALL EMPLOYERS. Any employer with less than 10 employees and less than $750,000 in gross sales in the most recent calendar or fiscal year, whichever the employer uses for income or franchise tax purposes, is not subject to the requirements of sub. (1). (2) INFORMATION. (a) Except as provided in s. 101.589, within 15 days after a written request by an employee or employee representative, exclusive of weekends and legal holidays, an employer shall provide to the employee or employee representative in writing the following information regarding any toxic substance with which the employee works or worked or to which the employee is likely to be or has been exposed: 1. The trade name of the toxic substance. 2. The chemical name and any commonly used synonym for the toxic substance and the chemical name and any commonly used synonym for its major components. 3. The boiling point, vapor pressure, vapor density, solubility in water, specific gravity, percentage volatile by volume, evaporation rate for liquids and appearance and odor of the toxic substance. 4. The flash point and flammable limits of the toxic substance. 5. Any permissible exposure level, threshold limit value or other established limit value for exposure to the toxic substance. 6. The stability of the toxic substance. 7. Recommended fire extinguishing media, special fire fighting procedures and any unusual fire and explosion hazard information for the toxic substance. 8. Any effect of overexposure to the toxic substance, emergency and first aid procedures and a telephone number to be called in an emergency. 9. Any condition or material which is incompatible with the toxic substance and must be avoided. 10. Any personal protective equipment to be worn or used and special precautions to be taken when handling or coming into contact with the toxic substance. 11. Procedures for the handling, cleanup and disposal of toxic substances leaked or spilled. (b) An employer is not required to provide information regarding a toxic substance under par. (a) if the employee or employee representative making the request has requested information about the toxic substance under par. (a) within the preceding 12 months, unless the employee’s job assignment has changed or there is new information available concerning any of the subjects about which information is required to be provided.
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