Occupational Exposure to 1,3-Butadiene

The Occupational Safety and Health Administration is reopening the record for the proposed revision of the 1,3-Butadiene (BD) standard to solicit public comment on a joint labor/industry agreement dated January 29, 1996, recommending that OSHA reduce the permissible exposure limits and expanding on some provisions that were addressed in OSHA's 1990 proposal (55 FR 32736, August 10, 1990). In addition, OSHA is seeking comment on possible changes in the medical surveillance requirements, including reliance on a medical questionnaire that would replace some of the proposed yearly medical examinations and reduce the need for medical removal protection. Finally, the Agency is entering into the rulemaking record four documents that have become available since the submission deadline of December 13, 1991, set by the Administration Law Judge following the rulemaking hearings.