#	Letters of Interpretation
1	05/14/2024 - 1926.51 - Sanitation facilities for railroad track employees and roadway maintenance groups
2	03/11/2011 - 1926.51(c)(4) - Clarification of mobile workers and sanitation facility requirements under HAZWOPER.
3	10/18/2010 - 1926.51(f)(1) - Region V request for enforcment guidance on portland cement and hexavalent chromium
4	10/18/2010 - 1926.51, 1926.51(f)(1) - Region V request for enforcment guidance on portland cement and hexavalent chromium
5	04/11/2008 - 1926.51(f)(1) - Whether a pH buffer solution can be used as a cleansing agent for employees who work with portland cement
6	03/01/2007 - 1926.51(f)(1) - Clarification of decontamination procedures for employees involved in Class I asbestos work.
7	03/01/2007 - 1926.51, 1926.51(f)(1) - Clarification of decontamination procedures for employees involved in Class I asbestos work.
8	06/12/2006 - 1926.51(f)(1) - Operations that trigger the requirement for employers to provide washing facilities on construction jobsites under 29 CFR 1926.51(f)(1).
9	06/12/2006 - 1926.51, 1926.51(f)(1) - Operations that trigger the requirement for employers to provide washing facilities on construction jobsites under 29 CFR 1926.51(f)(1).
10	05/17/2006 - 1926.51(c)(1) - Whether toilets at a construction jobsite must be in a sanitary condition to meet the requirements of 29 CFR 1926.51(c).
11	05/17/2006 - 1926.51, 1926.51(c)(1) - Whether toilets at a construction jobsite must be in a sanitary condition to meet the requirements of 29 CFR 1926.51(c).
12	07/20/2005 - 1926.51(f)(1) - The requirements for washing facilities on construction jobsites.
13	02/23/2005 - 1926.51(c)(4) - Providing employees with toilet facilities on a construction jobsite.
14	02/23/2005 - 1926.51(c)(1) - Providing employees with toilet facilities on a construction jobsite.
15	06/07/2002 - 1926.51(c) - Mobile crews must have prompt access to nearby toilet facilities.
16	06/07/2002 - 1926.51(c)(4) - Mobile crews must have prompt access to nearby toilet facilities.
17	06/07/2002 - 1926.51(c)(4), 1926.51(c), 1926.51 - Mobile crews must have prompt access to nearby toilet facilities.
18	02/02/1995 - 1926.51 - Enforcing the provision for toilet facilities on construction and demolition sites.
19	02/10/1994 - 1926.51 - Application of 29 CFR 1926.51(f)