(c)

1. (1) Portland cement plaster containing less than one-half of 1 percent asbestos shall be exempt from the provisions of this chapter until July 1, 1979.
2. (2) Pursuant to the provisions of Chapter 6 (commencing with Section 140) of Division 1 of the Labor Code, on or before June 1, 1979, the Occupational Safety and Health Standards Board shall conduct public hearings for the purpose of establishing classifications of methods and processes which are exempt from the prohibition of subdivision (a) for the use of portland cement plaster which contains less than one-half of 1 percent asbestos if no economically feasible method or process of spraying portland cement plaster which does not contain asbestos is commercially available. The board shall, on or before July 1, 1979, establish by regulation such classifications, if any, of methods and processes for the use of portland cement plaster which contains less than one-half of 1 percent asbestos which the board determines are exempt from the prohibition of subdivision (a). After July 1, 1979, the board may, after public hearings, amend, add, or repeal such regulations.
3. (3) During any use, spraying, application, handling, storage, repair, disposal, processing, or transportation of portland cement plaster containing asbestos, the person who causes or permits such acts pursuant to an exemption provided in, or adopted pursuant to, this subdivision shall comply with the provisions of Section 5208, Title 8, California Administrative Code as it exists on the effective date of the amendments to this section enacted by the Statutes of 1978 or as such provisions may, thereafter, be amended. However, on or before July 1, 1979, the board shall adopt regulations, and make such regulations operative on July 1, 1979, to establish the time weighted average concentration limits and ceiling concentration limits for employee exposure to airborne asbestos fibers arising from any use, spraying, application, handling, storage, repair, disposal, processing, or transportation of portland cement plaster containing asbestos pursuant to an exemption adopted pursuant to this subdivision at levels no higher than the levels contained in subparagraph (A), paragraph (1), subdivision (g) of Section 5208, Title 8, California Administrative Code, as it exists on the effective date of the amendments to this section enacted by the Statutes of 1978 or as such regulations may, thereafter, be amended.

(d)

1. (1) Exterior and interior coatings and laminating resins containing encapsulated asbestos fibers bound within the finished product from manufacture through application, and cold process asphalt roof coatings, shall be exempt from the provisions of this chapter until July 1, 1979.

2. (2) Pursuant to the provisions of Chapter 6 (commencing with Section 140) of Division 1 of the Labor Code, on or before June 1, 1979, the Occupational Safety and Health Standards Board shall conduct public hearings for the purpose of establishing classifications of use of products defined in paragraph (1) of this subdivision which are exempt from the prohibition of subdivision (a). The board shall, on or before July 1, 1979, establish by regulation such classifications, if any, of the use of products defined in paragraph (1) of this subdivision which the board determines are exempt from the prohibition of subdivision (a). After July 1, 1979, the board may, after public hearings, amend, add, or repeal such regulations.

   During any use, spraying, application, handling, storage, repair, disposal, processing, or transportation of such products, the person who causes or permits such acts pursuant to an exemption provided in, or adopted pursuant to, this subdivision shall comply with the provisions of Section 5208, Title 8, California Administrative Code as it exists on the effective date of the amendments to this section enacted by the Statutes of 1978 or may, thereafter, be amended. However, on or before July 1, 1979, the board shall adopt regulations, and make such regulations operative on July 1, 1979, to establish the time weighted average concentration limits for employee exposure to airborne asbestos fibers arising from any use, spraying, application, handling, storage, repair, disposal, processing, or transportation of exterior and interior coatings and laminating resins containing asbestos fibers contained within the finished product from manufacture through application, and cold process asphalt roof coatings pursuant to an exemption adopted pursuant to this subdivision at levels no higher than the levels contained in subparagraph (A), paragraph (1), subdivision (g) of Section 5208, Title 8, California Administrative Code, as it exists on the effective date of the amendments to this section enacted by the Statutes of 1978 or as such regulations may, thereafter, be amended.

(e)

1. (1) Any substance which contains less than one-quarter of 1 percent asbestos which occurs solely as a result of naturally occurring impurities in the substance or its components shall be exempt from the provisions of this chapter until July 1, 1979.
2. (2) Pursuant to the provisions of Chapter 6 (commencing with Section 140) of Division 1 of the Labor Code, on or before June 1, 1979, the Occupational Safety and Health Standards Board shall conduct public hearings for the purpose of establishing classifications of use of products defined in paragraph (1) of this subdivision which are exempt from the prohibition of subdivision (a). The board shall, on or before July 1, 1979, establish by regulation such classifications, if any, of the use of products defined in paragraph (1) of this subdivision which the board determines are exempt from the prohibition of subdivision (a). After July 1, 1979, the board may, after public hearings, amend, add, or repeal such regulations.
3. (3) During any use, spraying, application, handling, storage, repair, disposal, processing, or transportation of such products, the person who causes or permits such acts pursuant to an exemption provided in, or adopted pursuant to, this subdivision shall comply with the provisions of Section 5208, Title 8, California Administrative Code as it exists on the effective date of the amendments to this section enacted by the Statutes of 1978 or may, thereafter, be amended. However, on or before July 1, 1979, the board shall adopt regulations, and make such regulations operative on July 1, 1979, to establish the time weighted average concentration limits and ceiling concentration limits for employee exposure to airborne asbestos fibers arising from any use, spraying, application, handling, storage, repair, disposal, processing, or transportation of any substance which contains less than one-quarter of 1 percent asbestos which occurs solely as a result of naturally occurring impurities in the substance or its components pursuant to an exemption adopted pursuant to this subdivision at levels no higher than the levels prescribed in subparagraph (A), paragraph (1), subdivision (g) of Section 5208, Title 8, California Administrative Code, as it exists on the effective date of the amendments to this section enacted by the Statutes of 1978 or as such regulations may, thereafter, be amended.