# Standard Interpretations
1 - 1910.119 - Muriatic acid not subject to Process Safety Management standard.
2 - 1910.119 - Recognized and Generally Accepted Good Engineering Practices in Process Safety Management Enforcement
3 - 1910.119 - Training requirements for mechanics repairing and/or testing pressure relief devices.
4 - 1910.119 - Three scenarios and questions regarding on-site natural gas in pipe lines used as a fuel and as a feed stock.
5 - 1910.119 - Process Safety Management of Highly Hazardous Chemicals as it may apply to more than 250 pounds thionyl chloride stored on your work site.
6 - 1910.119 - Processes involving workplace explosive.
7 - 1910.119 - HHCs as it applies to manufacturing processes involving workplace explosives.
8 - 1910.119 - HHCs as it applies to ethylene oxide (ETO).
9 - 1910.119 - Steam boilers fired by flammable liquids or natural gas and the PSM standard.
10 - 1910.119 - HHCs as it applies to storing of flammable liquids.
11 - 1910.119(a) - Storage of pre-charged air conditioners and heat pumps in warehouses or distribution centers
12 - 1910.119(k) - Sulfur sticks and hot work requirements
13 - 1910.119 - Clarification on terms used in OSHA's PSM standard
14 - 1910.119(h)(3) - Employer Responsibilities and Contractor Responsibilities under the PSM Standard
15 - 1910.119(h)(2)(vi) - Employer Responsibilities and Contractor Responsibilities under the PSM Standard
16 - 1910.119 - PSM Coverage of LNG Facilities
17 - 1910.119(a) - OSHA PSM and Explosives Standards as They Relate to the DOT Classification "Not in the Explosive Class"
18 - 1910.119, 1910.119(a) - OSHA PSM and Explosives Standards as They Relate to the DOT Classification "Not in the Explosive Class"
19 - 1910.119(e)(7) - Documentation of PHA Findings and Recommendations
20 - 1910.119(e)(5) - Documentation of PHA Findings and Recommendations
21 - 1910.119(e)(6) - Updates to PHA Extended Shutdown Facility
22 - 1910.119(d)(3)(ii) - PSM and Aerosol (Flammable Gas) Containers Stored in Warehouses/Distribution Centers
23 - 1910.119(a) - PSM and Aerosol (Flammable Gas) Containers Stored in Warehouses/Distribution Centers
24 - 1910.119, 1910.119(a), 1910.119(d)(3)(ii) - PSM and Aerosol (Flammable Gas) Containers Stored in Warehouses/Distribution Centers
25 - 1910.119(b) - Production facilities that recover natural gas liquids may have enforceable PSM-covered processes
26 - 1910.119(a) - Production facilities that recover natural gas liquids may have enforceable PSM-covered processes
27 - 1910.119, 1910.119(a), 1910.119(b) - Production facilities that recover natural gas liquids may have enforceable PSM-covered processes
28 - 1910.119 - Flammable Liquid Processing Letter
29 - 1910.119 - Memorandum to Regional Administrators – Process Safety Management Retail Exemption Enforcement Policy
30 - 1910.119 - What constitutes an emergency response or incidental release of anhydrous ammonia
31 - 1910.119(b) - OSHA Interpretation on Connected System 29 CF 1910.119(b)
32 - 1910.119 - Process Safety Management of Highly Hazardous Chemicals and Covered Concentrations of Listed Appendix A Chemicals
33 - 1910.119 - RAGAGEP in Process Safety Management Enforcement
34 - 1910.119 - Boundaries of a PSM-Covered Process that Includes the Storage of Cylinders of HHCs (Anhydrous Hydrogen Fluoride)
35 - 1910.119 - Clarification of the term "hydrocarbon" as used in the PSM standard.
36 - 1910.119(j)(4)(iv) - Is reassembly of a cylinder valve a mechanical integrity activity?
37 - 1910.119, 1910.119(j)(4)(iv) - Is reassembly of a cylinder valve a mechanical integrity activity?
38 - 1910.119 - Numerous questions related to OSHA's notice to terminate the rulemaking to amend the explosives standard.
39 - 1910.119 - PSM and large batch-mixing tanks
40 - 1910.119(a)(1)(ii) - PSM for pharmaceutical plant
41 - 1910.119, 1910.119(a)(1)(ii) - PSM for pharmaceutical plant
42 - 1910.119 - Flame-resistant and flame-retardant treated clothing for oil and gas well drilling, servicing, and production-related operations
43 - 1910.119 - Clarification of term "Active Hydrocarbon Zone" as it relates to the oil and gas well drilling operations; and the need to use FRC when performing drilling operations
44 - 1910.119(l) - "Applicability of the PSM standard's mechanical intergrity requirements to refinery structures."
45 - 1910.119(j) - "Applicability of the PSM standard's mechanical intergrity requirements to refinery structures."
46 - 1910.119(e) - "Applicability of the PSM standard's mechanical intergrity requirements to refinery structures."
47 - 1910.119(d)(3) - "Applicability of the PSM standard's mechanical intergrity requirements to refinery structures."
48 - 1910.119, 1910.119(d)(3), 1910.119(e), 1910.119(j), 1910.119(l) - "Applicability of the PSM standard's mechanical intergrity requirements to refinery structures."
49 - 1910.119(b) - Determining when a mixture would exceed the threshold quantity in a covered process.
50 - 1910.119(a)(1)(ii) - Determining when a mixture would exceed the threshold quantity in a covered process.
51 - 1910.119, 1910.119(a)(1)(ii), 1910.119(b) - Determining when a mixture would exceed the threshold quantity in a covered process.
52 - 1910.119 - Management of Organizational Change
53 - 1910.119(b) - Extent of OSHA's jurisdiction over worksites involving geological and underground storage facilities for gas and hazardous liquids.
54 - 1910.119(a)(2)(ii) - Extent of OSHA's jurisdiction over worksites involving geological and underground storage facilities for gas and hazardous liquids.
55 - 1910.119, 1910.119(a)(2)(ii), 1910.119(b) - Extent of OSHA's jurisdiction over worksites involving geological and underground storage facilities for gas and hazardous liquids.
56 - 1910.119(a)(1)(ii)(B) - Riggs – PSM Coverage of Biodiesel Facilities
57 - 1910.119(b) - PSM coverage of utility systems; whether 1910.269 preempts the PSM standard for power generation facilities that serve covered processes.
58 - 1910.119(a)(1)(ii) - PSM coverage of utility systems; whether 1910.269 preempts the PSM standard for power generation facilities that serve covered processes.
59 - 1910.119(a)(1)(i) - PSM coverage of utility systems; whether 1910.269 preempts the PSM standard for power generation facilities that serve covered processes.
60 - 1910.119(j)(1) - PSM coverage of utility systems; whether 1910.269 preempts the PSM standard for power generation facilities that serve covered processes.
61 - 1910.119, 1910.119(a)(1)(i), 1910.119(a)(1)(ii), 1910.119(b), 1910.119(j)(1) - PSM coverage of utility systems; whether 1910.269 preempts the PSM standard for power generation facilities that serve covered processes.
62 - 1910.119(e)(1) - Clarification of requirements for storage and use of flammable and/or combustible liquids.
63 - 1910.119 - Pressure vessels used at oil and gas extraction/production facilities and applicability of 29 CFR 1910.106
64 - 1910.119(o)(1) - PSM compliance for ammonia refrigeration systems.
65 - 1910.119(m)(3) - PSM compliance for ammonia refrigeration systems.
66 - 1910.119(l)(5) - PSM compliance for ammonia refrigeration systems.
67 - 1910.119(l)(4) - PSM compliance for ammonia refrigeration systems.
68 - 1910.119(l)(2)(i) - PSM compliance for ammonia refrigeration systems.
69 - 1910.119(k)(2) - PSM compliance for ammonia refrigeration systems.
70 - 1910.119(j)(6)(ii) - PSM compliance for ammonia refrigeration systems.
71 - 1910.119(j)(6)(i) - PSM compliance for ammonia refrigeration systems.
72 - 1910.119(e)(3) - PSM compliance for ammonia refrigeration systems.
73 - 1910.119(d)(3)(ii) - PSM compliance for ammonia refrigeration systems.
74 - 1910.119(d)(3)(i) - PSM compliance for ammonia refrigeration systems.
75 - 1910.119, 1910.119(d)(3)(i), 1910.119(d)(3)(ii), 1910.119(e)(3), 1910.119(j)(6)(i), 1910.119(j)(6)(ii), 1910.119(k)(2), 1910.119(l)(2)(i), 1910.119(l)(4), 1910.119(l)(5), 1910.119(m)(3), 1910.119(o)(1) - PSM compliance for ammonia refrigeration systems.
76 - 1910.119(j)(2) - Requirement for flame-resistant clothing in petrochemical plant covered by PSM.
77 - 1910.119(h)(3) - Requirement for flame-resistant clothing in petrochemical plant covered by PSM.
78 - 1910.119(h)(2) - Requirement for flame-resistant clothing in petrochemical plant covered by PSM.
79 - 1910.119(f)(1)(iii)(B) - Requirement for flame-resistant clothing in petrochemical plant covered by PSM.
80 - 1910.119, 1910.119(f)(1)(iii)(B), 1910.119(h)(2), 1910.119(h)(3), 1910.119(j)(2) - Requirement for flame-resistant clothing in petrochemical plant covered by PSM.
81 - 1910.119 - Use of ANSI/ISA S84.00.01-2004 Parts 1-3 (IEC 61511 MOD) to comply with OSHA's Process Safety Management standard
82 - 1910.119(n) - Requirements for the control of personnel entering a facility under the Process Safety Management standard.
83 - 1910.119(h)(2)(iv) - Requirements for the control of personnel entering a facility under the Process Safety Management standard.
84 - 1910.119(f)(4) - Requirements for the control of personnel entering a facility under the Process Safety Management standard.
85 - 1910.119(b) - Evaluation of scenarios regarding PSM requirements related to normally unoccupied remote facilities and natural gas processing plants (gas plant).
86 - 1910.119, 1910.119(b) - Evaluation of scenarios regarding PSM requirements related to normally unoccupied remote facilities and natural gas processing plants (gas plant).
87 - 1910.119(e)(3) - Documentation methods used to comply with the qualitative evaluation of a range of possible safety/health effects of "failure of controls" requirement of the PSM standard.
88 - 1910.119(e) - Documentation methods used to comply with the qualitative evaluation of a range of possible safety/health effects of "failure of controls" requirement of the PSM standard.
89 - 1910.119, 1910.119(e), 1910.119(e)(3) - Documentation methods used to comply with the qualitative evaluation of a range of possible safety/health effects of "failure of controls" requirement of the PSM standard.
90 - 1910.119(d)(3)(i) - Process safety information for ventilation system design.
91 - 1910.119, 1910.119(d)(3)(i) - Process safety information for ventilation system design.
92 - 1910.119(n) - Requirements for emergency response and planning under the Process Safety Management Standard.
93 - 1910.119(a)(1)(ii)(B) - OSHA enforcement policy of the PSM standard distilleries and related facilities in SIC 2085.
94 - 1910.119, 1910.119(a)(1)(ii)(B) - OSHA enforcement policy of the PSM standard distilleries and related facilities in SIC 2085.
95 - 1910.119(a)(1)(ii)(B) - Clarification of PSM applicability to processes that are based partly or solely on quantities in connected atmospheric storage tanks.
96 - 1910.119, 1910.119(a)(1)(ii)(B) - Clarification of PSM applicability to processes that are based partly or solely on quantities in connected atmospheric storage tanks.
97 - 1910.119(o) - PSM applicability to warehousing flammable liquids and other HHCs.
98 - 1910.119(b) - PSM applicability to warehousing flammable liquids and other HHCs.
99 - 1910.119(a)(1)(ii)(B) - PSM applicability to warehousing flammable liquids and other HHCs.
100 - 1910.119, 1910.119(a)(1)(ii)(B), 1910.119(b), 1910.119(o) - PSM applicability to warehousing flammable liquids and other HHCs.
101 - 1910.119(e)(4) - Process hazard analysis facilitator's training requirements.
102 - 1910.119(d)(3)(iii) - Determination of safety for existing process equipment is required prior to start-up.
103 - 1910.119(a)(1)(ii)(A) - Thomas' MAPP gas glass mold heat processes fall within the PSM hydrocarbon fuels exemption.
104 - 1910.119(h)(3) - Applicability of PSM standard to on-site use of methane as fuel.
105 - 1910.119(a)(1) - Applicability of PSM standard to on-site use of methane as fuel.
106 - 1910.119(a) - OSHA will not enforce the PSM standard at oil and gas production facilities.
107 - 1910.119(j) - Compliance with PSM and ANSI/ISA-S84.01 for safety instrumented systems
108 - 1910.119(f)(1)(iv) - Compliance with PSM and ANSI/ISA-S84.01 for safety instrumented systems
109 - 1910.119(d)(3) - Compliance with PSM and ANSI/ISA-S84.01 for safety instrumented systems
110 - 1910.119(a) - Process Safety Management (PSM) applicability to liquid petroleum gas (LPG) bottle filling process.
111 - 1910.119(e) - Applicability of the PSM standard to a flammable liquid manufacturing process.
112 - 1910.119(a)(1)(ii)(B) - Applicability of the PSM standard to a flammable liquid manufacturing process.
113 - 1910.119, 1910.119(a)(1)(ii)(B), 1910.119(e) - Applicability of the PSM standard to a flammable liquid manufacturing process.
114 - 1910.119(a)(2)(iii) - PSM Standard exemption for "normally unoccupied remote facilites" (water treatment plant).
115 - 1910.119(d)(3)(iii) - Recalculating pressure vessel design; codes "no longer in use."
116 - 1910.119 - Applicability of PSM standard to explosive and pyrotechnic manufacturing.
117 - 1910.119(e)(3) - Steps for updating and revalidating a Process Hazard Analysis (PHA).
118 - 1910.119(e)(6) - Steps for updating and revalidating a Process Hazard Analysis (PHA).
119 - 1910.119 - Electrical hazardous area classification drawings in the workplace.
120 - 1910.119 - Sodium Azide as Used in the Manufacturing Process of Automobile Air Bags.
121 - 1910.119 - 1910.119 does not apply to public displays of flame effects.
122 - 1910.119(a)(1)(ii)(B) - Coverage of Stored Flammables Under the Process Safety Management Standard.
123 - 1910.119 - The Process Safety Management Standard.
124 - 1910.119 - Akzo-Nobel Chemicals - Limits of a Process
125 - 1910.119 - Response regarding the application of the OSHA Process Safety Management Standard to utility LPG distribution facilities.
126 - 1910.119 - Process Safety Management of Highly Hazardous Chemicals and process hazard analyses.
127 - 1910.119 - Clarification on the documentation of inspections and tests required under the mechanical integrity provisions.
128 - 1910.119 - Voluntary safety and health audits under the Occupational Safety and Health Act
129 - 1910.119 - Process Safety Management of highly hazardous chemicals standard.
130 - 1910.119 - Worker protection for employees incinerating hazardous waste on cement plant property.
131 - 1910.119 - Process safety management at what point a work site change would no longer be considered a modification but a new facility.
132 - 1910.119 - OSHA's Standard Process Safety Management of Highly Hazardous Chemicals.
133 - 1910.119 - Carburization process and the applicability of Process Safety Management for Highly Hazardous Chemicals.
134 - 1910.119 - Challenge Testing as a Substitute for Annual Refresher Training.
135 - 1910.119 - The (PSM) for Highly Hazardous Chemicals Standard and its applicability to the specific scenarios outlined.
136 - 1910.119 - Clarification on whether the ozone process described is covered by the PSM Standard.
137 - 1910.119 - Interpretation of the Process Safety Management of Highly Hazardous Chemicals Standard.
138 - 1910.119 - Clarification of the Process Safety Management standard with regard to material and energy balances.
139 - 1910.119 - The term "interconnection" as it would apply to utilities, steam and electric, used in a covered process.
140 - 1910.119 - Storage of flammable liquids and the applicability to the Process Safety Management standard.
141 - 1910.119 - The Ciba Self-Medication, Inc. (CSM) facility and the application of OSHA's PSM of Highly Hazardous Chemicals Standard.
142 - 1910.119 - Chlorine storage facility plan and the applicability of the Process Safety Management (PSM) of Highly Hazardous Chemicals Standard.
143 - 1910.119 - OSHA's approval of the Zurich Hazard Analysis, as an appropriate method for conductiong the process hazard analysis which is required by 1910.119.
144 - 1910.119 - Clarification on the time allowed for completion of the initial process hazard analysis (PHA) as it may apply to a hypothetical case involving four different work sites of an employer.
145 - 1910.119 - Confirmation that mixing of liquefied butane, transferred by a CTMV, with gasoline stored in atmospheric tanks at terminals is not covered by the PSM Standard.
146 - 1910.119 - Coverage under the Process Safety Management Standard.
147 - 1910.119 - "Compliance Audits" of the Process Safety Management of Highly Hazardous Chemicals Standard.
148 - 1910.119 - Regarding "Compliance Audits" of the Process Safety Management for Highly Hazardous Chemicals Standard.
149 - 1910.119 - The use of natural gas or liquid propane gas used in an after-burner.
150 - 1910.119 - Process Safety Management (PSM) of Highly Hazardous Chemicals standards, as it may apply to processes containing HHCs.
151 - 1910.119 - Clarification on how OSHA would address the use of natural gas or liquid propane gas used in an after-burner to remove volatile organic carbon (VOC) air contaminants.
152 - 1910.119 - Process Safety Management Program required by OSHA.
153 - 1910.119 - Interpretation of the Process Safety Management of Highly Hazardous Chemicals Standard.
154 - 1910.119 - Compliance Audits.
155 - 1910.119 - Process Safety Management Standard.
156 - 1910.119 - Process Safety Management of Highly Hazardous Chemicals.
157 - 1910.119 - Interpretation of the Process Safety Management (PSM) of Highly Hazardous Chemicals (HHCs) standard.
158 - 1910.119 - PSM clarification on flammable lubrication in aerosol cans, to prevent foods from sticking to heated cookware
159 - 1910.119 - Clarification on whether flammable liquids used to mix (1) inks used in printing on aluminum foil and paper and (2) paint used in coating aluminum sheets are covered by the PSM standard.
160 - 1910.119 - Process Safety Management - Threshold quantity is determined on the amount of HHC in the process.
161 - 1910.119 - The Process Safety Management (PSM) of Highly Hazardous Chemicals (HHC) standard.
162 - 1910.119 - HHC's as it applies to employer obligation to obtain and evaluate information regarding the contract employer's safety performance and programs
163 - 1910.119 - HHC's as it applies to pulp and paper industry processes that contain chlorine dioxide
164 - 1910.119 - Clarifications of the OSHA standards 1910.109 and 1910.119.
165 - 1910.119 - HHC's as it applies to exterior, interior tanks.
166 - 1910.119 - Highly Hazardous Chemical's anhydrous ammonia (NH(3)).
167 - 1910.119 - HHC standard as it applies to threshold quantity.
168 - 1910.119 - Highly Hazardous Chemicals, types of hardware that see contact with explosives.
169 - 1910.119 - Highly Hazardous Chemicals as it applies to aqueous solutions of hydrofluoric acid.
170 - 1910.119 - Highly Hazardous Chemicals as it applies to what constitutes the boundaries of a process.
171 - 1910.119 - Highly Hazardous Chemicals as it applies to threshold quantity (TQ) of HHCs.
172 - 1910.119 - Highly Hazardous Chemicals standard, Tertiary Butyl Hydroperoxide (TBHP).
173 - 1910.119 - Highly Hazardous Chemicals as it applies to flammable liquid from a stationary tank.
174 - 1910.119 - Highly Hazardous Chemicals as it applies to a covered process.
175 - 1910.119 - Highly Hazardous Chemicals as it applies to operating procedures and certify on an annual basis.
176 - 1910.119 - Remote distance, close proximity and other PSM questions.
177 - 1910.119 - Highly Hazardous Chemicals as it applies to solid propellant rocket motors.
178 - 1910.119 - Highly Hazardous Chemicals applies to aqueous solutions of Hydrogen Fluoride.
179 - 1910.119 - Highly Hazardous Chemicals as it applies to "Dowtherm".
180 - 1910.119 - Applicability of the Process Safety Management manufacturing processes involving workplace explosives.
181 - 1910.119 - HHCs as it applies to strategic petroleum reserve storage sites.
182 - 1910.119 - HHCs as it applies to end use applications of acrolein.
183 - 1910.119 - Coating processes covered by the PSM standard.
184 - 1910.119 - HHCs as it applies to Hydrogen Peroxide delivered from a tank truck.
185 - 1910.119 - Delivery of hydrogen peroxide, 52% by weight or greater.
186 - 1910.119 - HHCs as it applies to Hydrocarbon fuels used solely for workplace consumption.
187 - 1910.119 - Dimethylamine and Anhydrous Dimethlamine and the PSM standard.
188 - 1910.119 - Sulfuric acid and the PSM standard.
189 - 1910.119 - Black liquor recovery boilers, associated oil (or gas) auxiliary fuel burner systems and PSM.
190 - 1910.119 - Refresher training requirements.
191 - 1910.119 - Fumigants used to control insects in food plants.
192 - 1910.119 - HHC's as it applies to flammable liquid stored at a worksite.
193 - 1910.119 - Propane as a fuel for ovens; Chlorine storage exceeding 1500 pounds.
194 - 1910.119 - Interpretation of the Process Safety Management standard.
195 - 1910.119 - Outer Continental Shelf lands--OSHA and the U.S. Coast Guard.
196 - 1910.119 - Solutions of hydrogen chloride in water do not apply to Process Safety Management Standard.
197 - 1910.119 - When steam boilers fired by flammable liquids or natural gas are subject to the PSM standard.
198 - 1910.119 - Employee participation requirements of the Process safety management standard.
199 - 1910.119 - PSM threshold quantity; EPA regulated and permitted RCRA Hazardous waste treatment.
200 - 1910.119 - Natural gas facility process hazard analysis requirements.
201 - 1910.119 - PSM Standard does not apply to 10,000 pounds of hydrocarbon fuel on site used solely as a fuel for a furnace.
202 - 1910.119 - Training requirements of PSM.
203 - 1910.119 - Written operating procedures for computerized process control and safety interlock system software.
204 - 1910.119 - Gasoline used as a fuel to test run inboard and outboard engines does not fall under PSM.
205 - 1910.119 - Various questions on OSHA standards
206 - 1910.119 - Ceramic firing utilizing propane in amounts exceeding 10,000 pounds not subject to process safety management standard.
207 - 1910.119 - Cellulose nitrate and the PSM Standard.
208 - 1910.119 - Formaldehyde (37% by weight or greater) in the Process Safety Management Standard
209 - 1910.119 - Clarification of "laboratory" and "process" relative to process safety management standard.
210 - 1910.119(a) - Application of Process Safety Management of Highly Hazardous Chemicals to the manufacture of explosives and pyrotechnics.
211 - 1910.119 - Storage of flammable liquids and the PSM.