#	Letters of Interpretation
1	12/16/2013 - 1910 Subpart S - Application of 29 CFR 1910 Subpart S to design of industrial machinery
2	04/24/2012 - 1910 Subpart S - NRTL requirements for shielding gas regulators.
3	10/18/2006 - 1910 Subpart S - Incorporation of NFPA 70E-2000 into OSHA standards.
4	08/24/2005 - 1910 Subpart S - Lockout/tagout requirements for servicing manually-controlled vertical/horizontal milling machine and drill press tool changes.
5	01/16/2004 - 1910 Subpart S - Standards applicable to an automatic transfer device for processing and moving product.
6	11/10/1999 - 1910 Subpart S - LOTO of hydraulic systems; postal workers' exposure to hazardous material spills.
7	12/18/1997 - 1910 Subpart S - Electrical Conductor Identification.
8	09/09/1997 - 1910 Subpart S - Clarification of the Electrical Standard as it applies to flexible power cords on appliances.
9	05/12/1997 - 1910 Subpart S - Electrical standards and the application to electrically-powered medical devices.
10	08/16/1996 - 1910 Subpart S - Distinction between premises wiring installations and electric transmission or distribution installations.
11	05/09/1995 - 1910 Subpart S - Clarification of the Electric Power Generation, Transmission, And Distribution Standard, 29 CFR 1910.269.
12	06/24/1992 - 1910 Subpart S - Electrical standards and computer security devices.
13	06/17/1992 - 1910 Subpart S - Acceptable job-made extension cords.
14	03/03/1992 - 1910 Subpart S - Contractor shop-made extension cords.