Directives
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 1  1997 - 10/30/1997 - CPL 02-02-066 [CPL 2-2.66] - 1,3-Butadiene

Federal Registers
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 1  2013 - 09/12/2013 - Occupational Exposure to Respirable Crystalline Silica; Proposed Rule - 78: 56273-56504
 2  2012 - 07/06/2012 - 1,3-Butadiene Standard; Extension of the Office of Management and Budget's (OMB) Approval of Information Collection (Paperwork) Requirements - 77: 40087-40088
 3  2009 - 06/05/2009 - Submission for OMB Review: Comment Request - 74:27051-27052
 4  2009 - 03/20/2009 - 1,3-Butadiene Standard; Extension of the Office of Management and Budget's (OMB) Approval of Information Collection (Paperwork) Requirements - 74:11974-11975
 5  2006 - 06/20/2006 - Submission for OMB Review: Comment Request - 71:35451
 6  2006 - 02/24/2006 - Standard on 1,3-Butadiene; Extension of the Office of Management and Budget's Approval of Information Collection Requirements - 71:9607-9608
 7  2003 - 05/30/2003 - Submission for OMB Review; Comment Request - 68:32547-32548
 8  2003 - 03/11/2003 - Standard on 1,3-Butadiene; Extension of the Office of Management and Budget's (OMB) Approval of Information -- Collection (Paperwork) Requirements - 68:11592-11593
 9  2000 - 09/15/2000 - Agency Information-Collection Activities; Announcement of Office of Management and Budget (OMB) Approvals. - 65:56007-56008
 10  2000 - 04/06/2000 - Submission for OMB Review; Comment Request. - 65:18124-18125
 11  2000 - 01/25/2000 - 1,3-Butadiene; Extension of the Office of Management and Budget's (OMB) Approval of Information Collection (Paperwork) Requirements - 65:3979-3980
 12  1999 - 01/04/1999 - Washington State Standards; Notice of Approval. - 64:184-186
 13  1997 - 02/07/1997 - Office of the Secretary; Submission for OMB Review;Comment Request - 62:5852-5853
 14  1990 - 10/19/1990 - Extension of Comment Period and Change of Hearing Dates on Proposed Rule on Occupational Exposure to 1,3-Butadiene - 55:42406
 15  1990 - 08/10/1990 - Proposed Rule and Notice of Hearing on Occupational Exposure to 1, 3-Butadiene (BD) - 55:32736-32826

Standard Interpretations
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 1  1995 - 10/06/1995 - 8-hour total weight average (TWA) permissible exposure limit (PEL).

State Adoption Summary
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 1  State Adoption Summary: Assigned Protection Factors for Respiratory Protection