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

#	Letters of Interpretation
1	06/12/2002 - 1910.134(g)(1)(iii) - Fit testing and medical monitoring requirements for wearers of filtering facepiece respirators.
2	12/23/1998 - 1910.134(g)(1)(iii) - Clarification of respirator costs, annual training, and "effective" seal checks.
3	03/20/1987 - 1910.134(g)(1)(iii) - Protection provided by powered air-purifying respirators.
4	08/18/1986 - 1910.134(g)(1)(iii) - Hair where the mask edges meet the skin is not permitted for wearers of 30 minute positive pressure SCBA respirators.
5	11/26/1985 - 1910.134(g)(1)(iii) - Facial hair in the face sealing area is unacceptable.
6	10/11/1984 - 1910.134(g)(1)(iii) - Facial hair in the face sealing area is unacceptable.