#	Federal Register
1	04/03/2023 - 1910.1051 - 88:19679-19680 - The 1,3-Butadiene Standard; Extension of the Office of Management and Budget's (OMB) Approval of Information Collection (Paperwork) Requirements - PDF
2	02/23/2021 - 1910.1051 - 86:10997-10998 - Agency Information Collection Activities: Announcement of the Office of Management and Budget (OMB) Control Numbers Under the Paperwork Reduction Act - PDF
3	10/25/2019 - 1910.1051 - 84:57486-57487 - Agency Information Collection Activities: Announcement of the Office of Management and Budget (OMB) Control Numbers Under the Paperwork Reduction Act - PDF
4	01/09/2017 - 1910.1051, 1910.1051(a)(2)(ii) - 82:2470-2757 - Occupational Exposure to Beryllium - PDF
5	07/21/2016 - 1910.1051 - 81:47437-47438 - Agency Information Collection Activities: Announcement of the Office of Management and Budget (OMB) Control Numbers Under the Paperwork Reduction Act
6	03/25/2016 - 1910.1051 - 81:16285-16890 - Occupational Exposure to Respirable Crystalline Silica; Final Rule - PDF
7	03/01/2016 - 1910.1051 - 81:10671-10672 - Agency Information Collection Activities; Submission for OMB Review; Comment Request; 1,3-Butadiene Standard - PDF
8	10/26/2015 - 1910.1051 - 80:65246-65247 - The 1,3-Butadiene Standard; Extension of the Office of Management and Budget's (OMB) Approval of Information Collection (Paperwork) Requirements - PDF
9	08/07/2015 - 1910.1051 - 80:47565-47828 - Occupational Exposure to Beryllium and Beryllium Compounds; Proposed Rule - PDF
10	10/10/2014 - 1910.1051 - 79:61383-61438 - Chemical Management and Permissible Exposure Limits (PELs) - PDF
11	09/12/2013 - 1910.1051 - 78:56273-56504 - Occupational Exposure to Respirable Crystalline Silica; Proposed Rule - PDF
12	07/06/2012 - 1910.1051 - 77:40087-40088 - 1,3-Butadiene Standard; Extension of the Office of Management and Budget's (OMB) Approval of Information Collection (Paperwork) Requirements - PDF
13	06/05/2009 - 1910.1051 - 74:27051-27052 - Submission for OMB Review: Comment Request - PDF
14	03/20/2009 - 1910.1051 - 74:11974-11975 - 1,3-Butadiene Standard; Extension of the Office of Management and Budget's (OMB) Approval of Information Collection (Paperwork) Requirements - PDF
15	06/20/2006 - 1910.1051 - 71:35451 - Submission for OMB Review: Comment Request - PDF
16	02/24/2006 - 1910.1051 - 71:9607-9608 - Standard on 1,3-Butadiene; Extension of the Office of Management and Budget's Approval of Information Collection Requirements - PDF
17	01/05/2005 - 1910.1051 - 70:1111-1144 - Standards Improvement Project-Phase II - PDF
18	05/30/2003 - 1910.1051 - 68:32547-32548 - Submission for OMB Review; Comment Request - PDF
19	03/11/2003 - 1910.1051 - 68:11592-11593 - Standard on 1,3-Butadiene; Extension of the Office of Management and Budget's (OMB) Approval of Information -- Collection (Paperwork) Requirements - PDF
20	09/15/2000 - 1910.1051 - 65:56007-56008 - Agency Information-Collection Activities; Announcement of Office of Management and Budget (OMB) Approvals. - PDF
21	04/06/2000 - 1910.1051 - 65:18124-18125 - Submission for OMB Review; Comment Request. - PDF
22	01/25/2000 - 1910.1051 - 65:3979-3980 - 1,3-Butadiene; Extension of the Office of Management and Budget's (OMB) Approval of Information Collection (Paperwork) Requirements - PDF
23	01/04/1999 - 1910.1051 - 64:184-186 - Washington State Standards; Notice of Approval. - PDF
24	02/07/1997 - 1910.1051 - 62:5852-5853 - Office of the Secretary; Submission for OMB Review;Comment Request - PDF
25	10/19/1990 - 1910.1051 - 55:42406 - Extension of Comment Period and Change of Hearing Dates on Proposed Rule on Occupational Exposure to 1,3-Butadiene
26	08/10/1990 - 1910.1051 - 55:32736-32826 - Proposed Rule and Notice of Hearing on Occupational Exposure to 1, 3-Butadiene (BD)

#	Regulations
1	05/25/2012 - 1910.1051 - 1,3-Butadiene.

#	Directives
1	10/30/1997 - 1910.1051 - National - CPL 02-02-066 [CPL 2-2.66] - 1,3-Butadiene - PDF

#	Standard Interpretations
1	10/06/1995 - 1910.1051 - 8-hour total weight average (TWA) permissible exposure limit (PEL).