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# Standard Interpretations
1 2014 - 09/22/2014 - Electronic Certification of Training
2 2012 - 12/12/2012 - Whether an LED type device ca be used for the isolation and deenergization verification requirements of 1910.147 and 1910.333.
3 2012 - 08/02/2012 - Clarification on the use of a tagout device when an energy isolating device is capable of being locked out.
4 2012 - 05/08/2012 - Controlling Confined Space Hazards in Deep Tanks for Parts Cleaning
5 2012 - 04/03/2012 - Application of Lockout/Tagout to Employees Performing Maintenance Tasks on Cord and Plug Equipment
6 2011 - 08/30/2011 - Use of local valves as a means of equipment isolation for energy control.
7 2011 - 08/04/2011 - Numerous questions on lockout/tagout under 1910.147 and 1910.269
8 2010 - 11/30/2010 - Numerous questions on lockout/tagout under 1910.147 and Subpart S.
9 2008 - 01/25/2008 - Use of a PLC system as an alternative measure which provides effective protection for minor servicing activities.
10 2007 - 05/04/2007 - Lockout/Tagout and the provisions for testing or positioning of machines while they are energized.
11 2007 - 04/23/2007 - Application of Control of Hazardous Energy (LOTO) requirements to compressed gas cylinders.
12 2007 - 04/18/2007 - PRCS and LOTO requirements for accumulation of stored energy in steam pits
13 2007 - 02/26/2007 - Evaluation of the ElectroGuard disconnect system for use as an energy isolating device.
14 2006 - 12/28/2006 - Application of the Lockout/Tagout standard to die-setting activities and other machine setup operations.
15 2006 - 10/11/2006 - Use of LOTO device on equipment placed in "out of service" status not related to servicing or maintenance.
16 2006 - 08/25/2006 - Several questions regarding OSHA's LOTO and Bakery standards 29 CFR 1910.147 and 1910.263.
17 2006 - 07/28/2006 - Clarification about 29 CFR 1910.333 and 29 CFR 1910.147 as they relate to work inside an electrical panel and on related equipment.
18 2006 - 07/12/2006 - PSM compliance for ammonia refrigeration systems.
19 2006 - 05/09/2006 - Use of additional lock on a conveyor and baler system exceeds one lockout device.
20 2006 - 01/18/2006 - Interlock requirements for access door(s) of trash compactor.
21 2005 - 08/24/2005 - Lockout/tagout requirements for servicing manually-controlled vertical/horizontal milling machine and drill press tool changes.
22 2005 - 07/07/2005 - Machine guarding and exposure to hazards from robotic laundry shuttles.
23 2005 - 04/22/2005 - Lock out/Tag out (LOTO) requirements for die-setting operations in hydraulic power presses.
24 2004 - 11/10/2004 - Recognition of ANSI/ASSE Z244.1-2003 "Control of Hazardous Energy — Lockout/Tagout and Alternative Methods" consensus standard.
25 2004 - 04/07/2004 - Printing Industry: Lock Out/Tag Out and the essential elements of the inch-safe-service technique.
26 2003 - 06/13/2003 - Response to Edison Electric Institute's concerns regarding draft Instruction CPL 2-1.18A, "Enforcement of the Electric Power Generation, Transmission and Distribution Standard."
27 2003 - 06/13/2003 - Response to Exelon Generation's concerns regarding draft Instruction CPL 2-1.18A, "Enforcement of the Electric Power Generation, Transmission and Distribution Standard."
28 2003 - 05/13/2003 - Acceptability of modifying a standard on/off switch to provide lockout capability to a machine.
29 2002 - 12/02/2002 - Applicability of the confined-space standard to dock-leveler pits.
30 2002 - 08/30/2002 - Color is not the only prescribed factor for the standardization of LOTO devices.
31 2002 - 07/08/2002 - Use of verification tags for lockout.
32 2000 - 11/16/2000 - Applicability of OSHA's LOTO standards; isolation and verification procedures.
33 2000 - 07/10/2000 - Evaluation of proposed modifications to the Bureau of Prisons' Lockout/Tagout (LOTO) procedures.
34 1999 - 11/10/1999 - LOTO of hydraulic systems; postal workers' exposure to hazardous material spills.
35 1999 - 02/26/1999 - OSHA enforcement policy on vertical food mixers.
36 1998 - 08/19/1998 - Workers must be protected from hazards of heated (hot) surfaces.
37 1997 - 02/27/1997 - Clarification on entitlement of a copy of energy control program documentation at meat packing plant.
38 1996 - 10/29/1996 - Consultants performing lockout/tagout periodic inspections.
39 1996 - 10/02/1996 - Food Inspectors lockout/tagout procedures.
40 1996 - 09/11/1996 - Voluntary safety and health audits under the Occupational Safety and Health Act.
41 1996 - 05/15/1996 - Electrical generators in hospitals and the control of hazardous energy.
42 1995 - 10/27/1995 - Guidance in determining whether elevator pits meet the definition of confined spaces.
43 1995 - 09/27/1995 - Interpretation of the Process Safety Management of Highly Hazardous Chemicals Standard.
44 1995 - 08/28/1995 - The Lockout/Tagout Standard.
45 1995 - 05/24/1995 - Clarification concerning the Electric Power Generation, Transmission, and Distribution standard.
46 1994 - 02/09/1994 - OSHA's lockout/tagout standard is not applicable to maritime employment.
47 1993 - 11/15/1993 - Permit-Required Confined Spaces: metal container curing ovens.
48 1993 - 06/14/1993 - Applicability of the Machine Guarding and Lockout/Tagout standards to printing presses.
49 1992 - 09/16/1992 - Printing Presses: requirements for normal production and servicing operations.
50 1991 - 08/05/1991 - Motor starter circuits and energy isolation devices
51 1991 - 06/04/1991 - Interpretation of 1910.147, related to floating fish processors.
52 1991 - 04/10/1991 - Work permits in lockout/tagout standard requirements
53 1990 - 05/23/1990 - Guarding of machinery in bowling centers.

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