#	Federal Register
1	07/01/2025 - 1910.134(a) - 90:28286-28291 - Formaldehyde
2	07/01/2025 - 1910.134(a) - 90:28349-28354 - Cotton Dust
3	10/10/2014 - 1910.134(a) - 79:61383-61438 - Chemical Management and Permissible Exposure Limits (PELs) - PDF

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

#	Letters of Interpretation
1	07/03/2007 - 1910.134(a)(2) - Requirement for employer to assess potential hazards of handling trailer debris to provide necessary PPE and hazard communication information to affected employees.
2	02/06/2006 - 1910.134(a) - Facial hair and voluntary use of filtering facepiece respirators.
3	05/12/1999 - 1910.134(a)(2) - Respirators for silica dust must be selected based on exposure levels.
4	05/12/1999 - 1910.134(a)(1) - Respirators for silica dust must be selected based on exposure levels.
5	12/22/1983 - 1910.134(a)(2) - Paragraph (a)(2) applies to respirators provided for emergency use.