#	Federal Register
1	12/12/2024 - 1910.134(f) - 89:100321-100346 - Personal Protective Equipment in Construction - PDF
2	05/22/2024 - 1910.134(f) - 89:45025-45026 - Vinyl Chloride Standard; Extension of the Office of Management and Budget's (OMB) Approval of Information Collection (Paperwork) Requirements - PDF
3	07/20/2023 - 1910.134(f) - 88:46706-46720 - Personal Protective Equipment in Construction - PDF

#	Letters of Interpretation
1	04/26/2018 - 1910.134(f) - Voluntary use respirators
2	05/23/2017 - 1910.134(f) - Qualitative and quantitative fit tests versus assigned protection factors
3	02/08/2016 - 1910.134(f), 1910.134(f)(2) - Respirator fit test requirements
4	10/18/2004 - 1910.134(f) - Requirements for fit testing employees before fire brigade training exercises.
5	03/29/2004 - 1910.134(f) - Fit testing is not required for employees not exposed to a hazardous atmosphere and not required to wear a respirator.
6	02/05/2004 - 1910.134(f) - Fit testing requirements for employees who wear respirators to protect against M. Tuberculosis, SARS, Smallpox, and Monkeypox.
7	09/24/2002 - 1910.134(f) - Respiratory protection, medical surveillance, and training requirements under HAZWOPER
8	03/08/2001 - 1910.134(f) - Use of multi-station electric pump nebulizer and the squeeze bulb Bitrex for QLFT.
9	08/27/1999 - 1910.134(f) - Appendix A requirements and techniques for fit testing respirators.
10	01/15/1999 - 1910.134(f) - When to use quantitative and qualitative fit testing.
11	01/04/1999 - 1910.134(f) - The grimace step in respiratory protection fit-testing procedures.
12	11/16/1998 - 1910.134(f) - When to use qualitative or quantitative fit testing; storing SCBAs on fire trucks.
13	02/05/1996 - 1910.134(f) - The OSHA interpretation of respiratory protection requirements with regards to tuberculosis (TB) exposure.

#	Regulations
1	04/20/2006 - - Respiratory protection.