1
08/01/2025 Whether the respiratory protection medical evaluation may consider factors beyond respirator use
2
08/01/2025 Whether the respiratory protection medical evaluation may consider factors beyond respirator use
3
08/01/2025 Whether the respiratory protection medical evaluation may consider factors beyond respirator use
4
08/01/2025 Whether the respiratory protection medical evaluation may consider factors beyond respirator use
5
08/01/2025 Whether the respiratory protection medical evaluation may consider factors beyond respirator use
6
08/01/2025 Whether the respiratory protection medical evaluation may consider factors beyond respirator use
7
08/01/2025 Whether the respiratory protection medical evaluation may consider factors beyond respirator use
8
08/01/2025
Whether the respiratory protection medical evaluation may consider factors beyond respirator use
9
07/16/2024 Applicability of OSHA's definition of oxygen-deficient atmosphere to Air Force facilities
10
07/16/2024
Applicability of OSHA's definition of oxygen-deficient atmosphere to Air Force facilities
11
05/31/2023 Clarifications for breathing air quality and use
12
05/31/2023 Clarifications for breathing air quality and use
13
05/31/2023 Clarifications for breathing air quality and use
14
05/31/2023 Clarifications for breathing air quality and use
15
05/31/2023 Clarifications for breathing air quality and use
16
05/31/2023
Clarifications for breathing air quality and use
17
12/16/2021 Respiratory protection against COVID-19 for employees with religiously mandated facial hair
18
12/16/2021
Respiratory protection against COVID-19 for employees with religiously mandated facial hair
19
04/15/2021 Use of powered-air purifying respirators (PAPR) for welding operations and assigned protection factor
20
09/18/2019 Retention of Spirometry Records
21
09/04/2019 Escape-only respirators
22
09/04/2019 Escape-only respirators
23
09/04/2019
Escape-only respirators
24
04/26/2018 Voluntary use respirators
25
04/26/2018 Voluntary use respirators
26
04/26/2018 Voluntary use respirators
27
04/26/2018 Voluntary use respirators
28
04/26/2018
Voluntary use respirators
29
04/24/2018 Filtering facepiece respirators and medical evaluations
30
04/24/2018 Filtering facepiece respirators and medical evaluations
31
12/20/2017
Voluntary use of surgical masks
32
07/18/2017 Hooded versus tight-fitting respirators when complying with the Asbestos Standard
33
07/18/2017 Hooded versus tight-fitting respirators when complying with the Asbestos Standard
34
06/12/2017 Mandatory annual blood work requirements in OSHA's Respiratory Protection and Ethylene Oxide standards
35
06/12/2017 Mandatory annual blood work requirements in OSHA's Respiratory Protection and Ethylene Oxide standards
36
06/12/2017 Mandatory annual blood work requirements in OSHA's Respiratory Protection and Ethylene Oxide standards
37
05/23/2017 Qualitative and quantitative fit tests versus assigned protection factors
38
05/23/2017 Qualitative and quantitative fit tests versus assigned protection factors
39
01/17/2017 OSHA requirements for respirator fit testing with and without facepiece accessories
40
01/17/2017 OSHA requirements for respirator fit testing with and without facepiece accessories
41
10/07/2016
OSHA requirements for smoke plume generated from laser and electrosurgical instruments in dental offices and hospital operating rooms
42
05/09/2016 Facial hair and respirator fit
43
05/09/2016 Facial hair and respirator fit
44
02/08/2016 Respirator fit test requirements
45
02/08/2016 Respirator fit test requirements
46
02/08/2016 Respirator fit test requirements
47
03/18/2015
QLFT fit testing procedures
48
12/04/2014 Recordkeeping and maintenance of respirator medical evaluations
49
09/02/2014 Clarification on whether a Registered Nurse can act as a licensed health care professional for purposes of conducting a respiratory protection medical evaluation
50
07/17/2014 Permit-Required Confined Space Entry Requirements For IDLH and Non-IDLH Spaces
51
07/17/2014
Permit-Required Confined Space Entry Requirements For IDLH and Non-IDLH Spaces
52
11/04/2013 APF for the combination pressure-demand, full-facepiece SAR with auxiliary SCBA
53
11/04/2013
APF for the combination pressure-demand, full-facepiece SAR with auxiliary SCBA
54
09/14/2012
Facial Hair Under Seal of Tight-fitting Respirator
55
05/14/2012 Whether the Respiratory Protection standard requires personal air monitoring to identify and evaluate the respiratory hazards in the workplace.
56
05/14/2012
Whether the Respiratory Protection standard requires personal air monitoring to identify and evaluate the respiratory hazards in the workplace.
57
02/29/2012
Additional duties of two standby personnel for structural firefighting
58
12/27/2011 Fit testing requirements for respirators used for CBRN protection.
59
12/27/2011 Fit testing requirements for respirators used for CBRN protection.
60
12/27/2011
Fit testing requirements for respirators used for CBRN protection.
61
11/22/2011 Numerous questions on filtering facepiece/dusk mask respirators.
62
11/22/2011 Numerous questions on filtering facepiece/dusk mask respirators.
63
11/22/2011 Numerous questions on filtering facepiece/dusk mask respirators.
64
11/22/2011
Numerous questions on filtering facepiece/dusk mask respirators.
65
10/26/2011 Fit testing for CBRN respirators.
66
10/26/2011
Fit testing for CBRN respirators.
67
08/05/2011 OSHA's decision not to provide a religious exemption from the respirator standard.
68
08/05/2011 OSHA's decision not to provide a religious exemption from the respirator standard.
69
08/05/2011
OSHA's decision not to provide a religious exemption from the respirator standard.
70
04/26/2011
Clarification on the use of smoke escape hoods/masks by area monitors during a building evacuation.
71
04/01/2011 Clarification on firefighters with facial hair who enter IDLH atmospheres and use a self-contained breathing apparatus.
72
04/01/2011
Clarification on firefighters with facial hair who enter IDLH atmospheres and use a self-contained breathing apparatus.
73
08/11/2010 Use of smoke escape hoods meeting the ANSI-ISEA standard
74
08/11/2010 Use of smoke escape hoods meeting the ANSI-ISEA standard
75
08/11/2010 Use of smoke escape hoods meeting the ANSI-ISEA standard
76
08/11/2010
Use of smoke escape hoods meeting the ANSI-ISEA standard
77
04/28/2010 OSHA Training Standards Policy Statements
78
02/03/2010
Clarification of OSHA's position on preemption precluding state court findings with regard to defective NIOSH-certified respirators.
79
01/29/2010
Definition of a single use and negative pressure respirator
80
11/13/2009
Clarification on equivalent test nebulizer for qualitative fit tests.
81
07/14/2009
Difference between voluntary and non-voluntary use of a respirator.
82
06/02/2009 Maintenance of medical evaluation and fit test records as required by the Respiratory Protection Standard.
83
06/02/2009
Maintenance of medical evaluation and fit test records as required by the Respiratory Protection Standard.
84
05/01/2008 Clarification of OSHA denial of FirePASS's variance request and respiratory protection requirements in oxygen-deficient atmospheres.
85
05/01/2008
Clarification of OSHA denial of FirePASS's variance request and respiratory protection requirements in oxygen-deficient atmospheres.
86
07/23/2007 Clarification on whether to use quantitative or qualitative fit-testing for full-facepiece PAPRs.
87
07/23/2007
Clarification on whether to use quantitative or qualitative fit-testing for full-facepiece PAPRs.
88
07/03/2007 Requirement for employer to assess potential hazards of handling trailer debris to provide necessary PPE and hazard communication information to affected employees.
89
05/10/2007
Clarification of OSHA's asbestos standards for general industry and construction and the respiratory protection standard as applied to medical surveillance of employees.
90
04/04/2007
Performance of user seal checks and whether positive and/or negative seal checks are required when donning a respirator.
91
04/02/2007 Clarification of OSHA's requirement for breathing air to have at least 19.5 percent oxygen content.
92
04/02/2007 Clarification of OSHA's requirement for breathing air to have at least 19.5 percent oxygen content.
93
04/02/2007 Clarification of OSHA's requirement for breathing air to have at least 19.5 percent oxygen content.
94
04/02/2007
Clarification of OSHA's requirement for breathing air to have at least 19.5 percent oxygen content.
95
07/12/2006
PSM compliance for ammonia refrigeration systems.
96
02/06/2006 Facial hair and voluntary use of filtering facepiece respirators.
97
02/06/2006 Facial hair and voluntary use of filtering facepiece respirators.
98
02/06/2006
Facial hair and voluntary use of filtering facepiece respirators.
99
10/20/2005 Employee's rights upon termination to access to physician's written opinion and respirator fit test results.
100
10/20/2005 Employee's rights upon termination to access to physician's written opinion and respirator fit test results.
101
10/20/2005 Employee's rights upon termination to access to physician's written opinion and respirator fit test results.
102
08/19/2005 Respirator breathing air cylinders must be maintained in a fully chargd state, regardless of cylinder size, and recharged when pressure falls below 90% of full charge.
103
10/28/2004 Requirements for providing medical evaluations prior to wearing respiratory protection for training exercises.
104
10/28/2004
Requirements for providing medical evaluations prior to wearing respiratory protection for training exercises.
105
10/21/2004 Respiratory protection medical evaluations: additional evaluations; use of employee's physician; testing; medical removal; and confidentiality.
106
10/21/2004 Respiratory protection medical evaluations: additional evaluations; use of employee's physician; testing; medical removal; and confidentiality.
107
10/21/2004
Respiratory protection medical evaluations: additional evaluations; use of employee's physician; testing; medical removal; and confidentiality.
108
10/18/2004 Requirements for fit testing employees before fire brigade training exercises.
109
10/18/2004
Requirements for fit testing employees before fire brigade training exercises.
110
07/23/2004
Respiratory protection program requirements for M. tuberculosis based on risk assessments; applicability of the respirator standard to long-term healthcare facilities.
111
03/29/2004 Fit testing is not required for employees not exposed to a hazardous atmosphere and not required to wear a respirator.
112
03/29/2004
Fit testing is not required for employees not exposed to a hazardous atmosphere and not required to wear a respirator.
113
02/05/2004 Fit testing requirements for employees who wear respirators to protect against M. Tuberculosis, SARS, Smallpox, and Monkeypox.
114
02/05/2004
Fit testing requirements for employees who wear respirators to protect against M. Tuberculosis, SARS, Smallpox, and Monkeypox.
115
03/07/2003 Beards may not interfere with face seal;alternative respirators for bearded employees.
116
03/07/2003 Beards may not interfere with face seal;alternative respirators for bearded employees.
117
03/07/2003
Beards may not interfere with face seal;alternative respirators for bearded employees.
118
01/13/2003 Respiratory protection and emergency escape requirements for IDLH atmospheres.
119
01/13/2003
Respiratory protection and emergency escape requirements for IDLH atmospheres.
120
12/02/2002 Training and PPE requirements for hospital staff that decontaminate victims/patients.
121
12/02/2002
Training and PPE requirements for hospital staff that decontaminate victims/patients.
122
09/24/2002 Respiratory protection, medical surveillance, and training requirements under HAZWOPER
123
09/24/2002 Respiratory protection, medical surveillance, and training requirements under HAZWOPER
124
09/24/2002
Respiratory protection, medical surveillance, and training requirements under HAZWOPER
125
09/05/2002 Respiratory protection requirements for hospital staff decontaminating chemically contaminated patients.
126
09/05/2002
Respiratory protection requirements for hospital staff decontaminating chemically contaminated patients.
127
08/16/2002 Acceptable use of an electronic medical questionnaire system to comply with 1910.134(e).
128
07/08/2002 Classification of fires; respiratory protection to extinguish fires.
129
07/08/2002 Classification of fires; respiratory protection to extinguish fires.
130
06/12/2002 Fit testing and medical monitoring requirements for wearers of filtering facepiece respirators.
131
06/12/2002 Fit testing and medical monitoring requirements for wearers of filtering facepiece respirators.
132
06/12/2002 Fit testing and medical monitoring requirements for wearers of filtering facepiece respirators.
133
05/30/2002 Protection factors for respirators used in pharmaceutical industry: policy change.
134
10/16/1998
Questions and answers regarding the respiratory protection standard
135
05/30/2002
Protection factors for respirators used in pharmaceutical industry: policy change.
136
05/03/2001
Application of 1926.800 to lone employees working underground in a tunnel or shaft connected to a tunnel.
137
03/08/2001 Use of multi-station electric pump nebulizer and the squeeze bulb Bitrex for QLFT.
138
07/18/2000 Selection of air purifying respirators for gases and vapors with poor warning properties (diisocyanates)
139
07/18/2000 Selection of air purifying respirators for gases and vapors with poor warning properties (diisocyanates)
140
10/01/1999 Respirators for voluntary use and cleaning respirators during fit testing.
141
10/01/1999 Respirators for voluntary use and cleaning respirators during fit testing.
142
10/01/1999 Respirators for voluntary use and cleaning respirators during fit testing.
143
10/01/1999 Respirators for voluntary use and cleaning respirators during fit testing.
144
08/27/1999 Appendix A requirements and techniques for fit testing respirators.
145
08/13/1999 1910.134(i) does not apply to portable breathing air compressors.
146
05/12/1999 Respirators for silica dust must be selected based on exposure levels.
147
05/12/1999 Respirators for silica dust must be selected based on exposure levels.
148
04/08/1999
Preemption of respiratory protection standard by DOT's Office of Pipeline Safety regulations.
149
03/12/1999 Complying with the "two-in, two-out" policy for interior structural firefighting.
150
03/08/1999 Medical evaluation not required for the use of escape only respirators.
151
03/05/1999 Medical evaluations must be performed prior to fit testing.
152
02/05/1999 Using a "generic type" certificate of analysis for Grade D breathing air.
153
01/29/1999 Using combinations of respiratory protection not approved by NIOSH.
154
01/15/1999 When to use quantitative and qualitative fit testing.
155
01/15/1999 Comparing medical evaluation requirements in the HAZWOPER, Respiratory protection, and Fire brigades standards.
156
01/04/1999 The grimace step in respiratory protection fit-testing procedures.
157
01/04/1999 Respiratory protection: editing the medical questionnaire; medical questionnaire not always required.
158
01/02/1999 Clarification of a PLHCP under the Respiratory protection standard.
159
12/23/1998 Clarification of respirator costs, annual training, and "effective" seal checks.
160
12/23/1998 Clarification of respirator costs, annual training, and "effective" seal checks.
161
12/23/1998 Clarification of respirator costs, annual training, and "effective" seal checks.
162
12/23/1998 Clarification of respirator costs, annual training, and "effective" seal checks.
163
12/15/1998 Respiratory protecton standard two-in/two-out policy.
164
12/08/1998
Enforcement policy for abrasive-blasting respiratory protection under the Lead in Construction Interim Final Rule.
165
12/07/1998
Respiratory protection for anhydrous ammonia storage installations.
166
12/02/1998
Employee declination of medical evaluation; religious exemptions for respirator use.
167
11/16/1998 When to use qualitative or quantitative fit testing; storing SCBAs on fire trucks.
168
11/16/1998 When to use qualitative or quantitative fit testing; storing SCBAs on fire trucks.
169
11/16/1998 Clarification of the medical evaluation provisions of the revised respiratory protection standard.
170
11/13/1998 Two-in/two-out rule for interior structural fire fighting.
171
11/11/1998 Assessing hazards to select eye and respiratory protection.
172
11/02/1998 Decontamination of SCBA second stage regulators.
173
10/16/1998 Conduct of respiratory protection medical evaluations by medical technicians.
174
10/16/1998 Health care professional's discretion regarding medical evaluations and exams.
175
10/16/1998
Conduct of respiratory protection medical evaluations by medical technicians.
176
10/05/1998 Medical evaluation requirements under the respiratory protection standard
177
10/05/1998 Medical evaluation requirements under the respiratory protection standard
178
04/29/1998 Two-in/two-out procedure in firefighting/IDLH environments.
179
10/22/1997
Conditions where OSHA might accept a product that is not approved by NIOSH.
180
07/01/1997 NIOSH approved respirator during the period of an employee's escape from a chemical release of phosgene.
181
06/20/1997 SCBA cylinder interchangeability.
182
05/15/1997
Permissible Exposure Limits for Nuisance dust.
183
05/05/1997 The use of particulate filters and respirators.
184
03/31/1997
Additional Enforcement Policy Change for Respiratory Protection Required for Abrasive Blasting.
185
10/03/1996
Inquiry on beards, respirator use, and fit testing of repirators.
186
09/11/1996
Voluntary safety and health audits under the Occupational Safety and Health Act
187
09/04/1996
Belt mounted filtration unit used with any NIOSH approved supplied-air respirator.
188
09/03/1996
Particulate Respirators Certified under 42 CFR Part 84.
189
07/18/1996
Incipient stage fire brigades.
190
05/15/1996
Variance exposure level for silver metal.
191
04/22/1996
Tuberculosis: respiratory protection and complaint inspection.
192
04/18/1996
The Use of the Bullard "Free Air" Pump.
193
04/16/1996
Job requiring respiratory protection.
194
03/18/1996 The relationship between OSHA standards and the usage of particulate respirators.
195
03/04/1996
Fit testing and fit factors for the N-95 respirators for protection against TB exposure.
196
02/05/1996 The OSHA interpretation of respiratory protection requirements with regards to tuberculosis (TB) exposure.
197
02/05/1996 The OSHA interpretation of respiratory protection requirements with regards to tuberculosis (TB) exposure.
198
02/05/1996
The OSHA interpretation of respiratory protection requirements with regards to tuberculosis (TB) exposure.
199
11/01/1995 The interpretation of the OSHA standards 1910.134 and 1910.156 which address the requirements for workers who are actively conducting operations in atmospheres that are immediately dangerous to life and health.
200
11/01/1995 The interpretation of the OSHA standards 1910.134 and 1910.156 which address the requirements for workers who are actively conducting operations in atmospheres that are immediately dangerous to life and health.
201
10/11/1995 Clarification on OSHA's policy regarding Immediately Dangerous to Life and Health since NIOSH has lowered several IDLH levels.
202
10/11/1995 Clarification on OSHA's policy regarding Immediately Dangerous to Life and Health since NIOSH has lowered several IDLH levels.
203
09/20/1995 Appropriateness of using Mag-1 Eyewear eyeglass holders with full facepiece respirators and self-contained breathing apparatus (SCBA).
204
09/20/1995 Appropriateness of using Mag-1 Eyewear eyeglass holders with full facepiece respirators and self-contained breathing apparatus (SCBA).
205
09/20/1995 Appropriateness of using Mag-1 Eyewear eyeglass holders with full facepiece respirators and self-contained breathing apparatus (SCBA).
206
09/20/1995 Appropriateness of using Mag-1 Eyewear eyeglass holders with full facepiece respirators and self-contained breathing apparatus (SCBA).
207
09/20/1995
Appropriateness of using Mag-1 Eyewear eyeglass holders with full facepiece respirators and self-contained breathing apparatus (SCBA).
208
07/03/1995
Interpretation of the Personal Protective Equipment standard
209
05/01/1995 Response to IDLH or Potential IDLH atmospheres.
210
04/06/1995
OSHA tuberculosis (TB) enforcement.
211
03/09/1995
Employees in a cotton yarn manufacturing plant who voluntarily wear cloth over their mouths and noses to prevent lint from sticking to their skin.
212
07/05/1994 Carbon Monoxide or High Temperature Alarm Requirement for Portable Breathing Air Compressors.
213
05/25/1994
Respirator Exhalation Valve Leakage.
214
04/25/1994 Breathing air: testing and carbon monoxide alarm.
215
02/23/1994
Storage of flammable and/or combustible liquids.
216
07/27/1993 Use of the Racal "Breath-Easy 6" powered air purifying respirator with beards.
217
06/17/1993 Pulmonary function testing training requirements and spirometer transmission of disease.
218
06/17/1993 Pulmonary function testing training requirements and spirometer transmission of disease.
219
06/17/1993
Pulmonary function testing training requirements and spirometer transmission of disease.
220
04/14/1993
Respiratory protection as it relates to oil fields
221
09/01/1992
South Carolina's regulatory procedures for single-use respirators.
222
07/28/1992
Spray painting relating to vehicle maintenance operations.
223
12/02/1991
Hazwoper training in hospitals.
224
08/20/1991
Training requirements of Hazwoper for various functions.
225
06/04/1991
Training required for emergency response at industrial facilities
226
01/29/1991
The intervals between physical examinations for employees performing interior structural firefighting.
227
01/24/1991 Use of non-approved respirators and improper use of approved respirators
228
06/13/1990
Ventilation for an anhydrous ammonia refrigeration system.
229
06/11/1990
Respirator rules as applied to open hatch gauging of sour crude oil storage tanks.
230
01/10/1990 Use of Air-Purifying Respirators In Dangerous Concentrations of Gases Or Vapors
231
01/10/1990 Use of Air-Purifying Respirators In Dangerous Concentrations of Gases Or Vapors
232
01/10/1990 Use of Air-Purifying Respirators In Dangerous Concentrations of Gases Or Vapors
233
01/10/1990 Use of Air-Purifying Respirators In Dangerous Concentrations of Gases Or Vapors
234
01/10/1990 Use of Air-Purifying Respirators In Dangerous Concentrations of Gases Or Vapors
235
01/10/1990
Use of Air-Purifying Respirators In Dangerous Concentrations of Gases Or Vapors
236
06/27/1989
Sampling Procedures for Employees Using Air-Supplied Respirators
237
04/25/1989
Respiratory protection requirements for sour crude oil tank operations.
238
03/01/1989
Respiratory Protection for Mercury and Chlorine
239
09/15/1987
Respiratory protection compliance responsibility for contract workers and visitors.
240
04/07/1987
Use of eyeglass inserts or spectacle kits inside respirator full facepieces.
241
03/24/1987
Acceptance of closed-circuit self-contained breathing apparatus for firefighting.
242
03/20/1987 Protection provided by powered air-purifying respirators.
243
03/20/1987 Protection provided by powered air-purifying respirators.
244
03/20/1987 Protection provided by powered air-purifying respirators.
245
08/18/1986 Hair where the mask edges meet the skin is not permitted for wearers of 30 minute positive pressure SCBA respirators.
246
08/18/1986 Hair where the mask edges meet the skin is not permitted for wearers of 30 minute positive pressure SCBA respirators.
247
08/18/1986 Hair where the mask edges meet the skin is not permitted for wearers of 30 minute positive pressure SCBA respirators.
248
04/24/1986 Couplings used in supplied air respirator systems.
249
04/21/1986
The M-17 gas mask may not be used by workers other than enlisted military personnel.
250
01/17/1986
Standard for exposure to tetrahydrofuran; Respirators may be worn only if engineering and administrative controls are not feasible.
251
11/26/1985 Facial hair in the face sealing area is unacceptable.
252
11/26/1985 Facial hair in the face sealing area is unacceptable.
253
11/26/1985 Facial hair in the face sealing area is unacceptable.
254
11/19/1985
Application of the Hazard Communication standard to gray and ductile iron castings.
255
11/15/1985 Use of Chemical Cartridge Respirators for Protection Against Mercury Vapor
256
11/15/1985
Use of Bureau of Mines Approved Gas Mask Canisters
257
03/29/1985
Facial hair and respirator wearing.
258
02/21/1985
Facial hair and the wearing of respirators.
259
11/13/1984
Acceptable respirators for exposure to ethylene oxide; Acceptable respirators for exposure to ethylene oxide.
260
10/11/1984 Facial hair in the face sealing area is unacceptable.
261
10/11/1984 Facial hair in the face sealing area is unacceptable.
262
10/11/1984 Facial hair in the face sealing area is unacceptable.
263
05/14/1984 Medical Interpretation concerning exposure to H2S and respiratory protection with a perforated ear drum.
264
01/18/1984 Workers cannot sign a release so they can wear a respirator with a beard.
265
12/22/1983 Paragraph (a)(2) applies to respirators provided for emergency use.
266
06/15/1983 Biopacks are acceptable for fire brigade use; Biopacks are acceptable as SCBA's and may be used in IDLH atmospheres.
267
02/25/1982 Use of skin diving hood under respirator for bearded employee unacceptable.
268
10/15/1981 Del-Monox air purifiers are unacceptable for testing carbon monoxide concentration for compressor breathing air.
269
07/14/1981 Cool-view welding helmets must meet Grade D breathing air requirements; Requirements for standard welding helmets.
270
01/24/1980
Carbon Monoxide Alarm/Monitoring at Abrasive Blasting Operations.
271
03/06/1979 Respirator air quality standards do not apply where the NRC has jurisdiction
