Document x8MwjQjDyrO29R0V4eDNkBMm

DRAFT ACTIONS ON VINYL CHLORIDE EXPOSURE LEVELS ACGIH X American Conference of Government Industrial Hygienists X [TLV is ACGIH's copyright similar to Time Weighted Average] Recommendations VC1 included in first list 1948 TLV 500 ppm Proposed change to make TLV the ceiling value (1962) ? TLV 500c " Adopted proposed change 1963 TLV 500c " Proposed change of VC1 TLV Oct. 1970 TLV 200 ppm Adopted proposed change Oct. 1972 TLV 200 ppm ' OSHA Law enacted Dec. 29, 1970 (implemented Apr.28, ^.971) Law adopted ACGIH standards May 29, 1971 500c ppm Priority list for standard review (VCM 11th group on priority list) Spring , 1972 Call for standard rulemaking oh VCM Jan., 1973 Meeting of Committee on VCM Hearing on standard June , 1973 Feb. 15, 1974 Emergency temporary standard April 5, 1974 50c ppm Proposed permanent standard Public comments by Hearings May 6, 1974 no detectable June 10, 1974. June25-28, 1974 Drafting of permanent standard NIOSH ~ July 9, 1974 Recommendations to OSHA BMGZjksc snate/^ cc: H. Waltematei J. L. Nelson A. Vittone, Jr. March 'll, 1974 no detectable H 0> M U tQ BFG63668