#	Letters of Interpretation
1	01/23/1991 - 1910.38 - Employee emergency alarm systems.
2	10/02/2017 - 1910.38 - What constitutes an emergency response or incidental release of anhydrous ammonia
3	03/07/2007 - 1910.38 - Initial and annual refresher HAZWOPER training requirements for employees exposed to health hazards or hazardous substances at TSD facilities.
4	07/12/2006 - 1910.38 - PSM compliance for ammonia refrigeration systems.
5	05/24/2004 - 1910.38 - Application of OSHA standards to escape and protection of employees from threats associated with terrorist actions.
6	06/24/2003 - 1910.38(c)(3) - Requirements for emergency response and planning under the Process Safety Management Standard.
7	04/08/1997 - 1910.38 - The airflow rate required for a spray painting area.
8	04/17/2007 - 1910.38 - Emergency action plan procedures when employees discover an unknown biohazard.
9	06/24/2003 - 1910.38(a) - Requirements for emergency response and planning under the Process Safety Management Standard.
10	04/08/1997 - 1910.38 - Requirements for electrical wiring in supply and disposal function warehouses containing hazardous materials.
11	01/14/1997 - 1910.38 - Training provisions of OSHA's HAZWOPER standard.
12	08/11/1995 - 1910.38 - The application of the OSHA HAZWOPER standard to employers of transfer facilities.
13	12/30/1992 - 1910.38 - The hazardous waste operations and emergency response regulation.
14	12/16/1992 - 1910.38 - Alarm systems for employee evacuation and/or response.
15	10/06/1992 - 1910.38 - Emergency drainage systems for flammable/combustible liquids in industrial plants.
16	12/30/1991 - 1910.38 - Training and HAZWOPER.
17	10/08/1991 - 1910.38 - Over-the-road vehicle operator required response to a large release.
18	08/27/1991 - 1910.38 - OSHA's Hazardous Waste Operations and Emergency Response.
19	08/20/1991 - 1910.38 - Training requirements of Hazwoper for various functions.
20	06/26/1991 - 1910.38 - Employee evacuation in the event of imminent Natural Phenomenon.
21	04/03/1991 - 1910.38 - Emergency response in the trucking industry
22	01/23/1991 - 1910.38 - Application of the Hazardous Waste Operations and Emergency Response to general industry.
23	07/03/1990 - 1910.38 - Fire brigades and portable fire extinguishers standards.
24	02/05/1990 - 1910.38(b) - Clarification of whether employee emergency action or fire prevention plans need to be in written form
25	02/05/1990 - 1910.38, 1910.38(b) - Clarification of whether employee emergency action or fire prevention plans need to be in written form
26	07/28/1989 - 1910.38 - Application of OSHA's final standard for Hazardous Waste Operations and Emergency Response.
27	01/13/1987 - 1910.38 - Plans are required for EtO emergency situations and must be written in accordance with 1910.38 and 1910.39.
28	01/08/1987 - 1910.38 - Means of alerting employees during EtO emergency situations in hospitals;direct voice communication may be used to warn employees during an EtO emergency.
29	09/12/1986 - 1910.38 - Fire equipment training requirements.
30	01/28/1983 - 1910.38(e) - Clarification of Fire Protection, Exit Routes, and Hazardous Material Standards.
31	01/28/1983 - 1910.38, 1910.38(e) - Clarification of Fire Protection, Exit Routes, and Hazardous Material Standards.
32	08/07/1981 - 1910.38(d) - Fire detection and employee alarm systems.
33	08/07/1981 - 1910.38, 1910.38(d) - Fire detection and employee alarm systems.