[Code of Federal Regulations]
[Title 42, Volume 1]
[Revised as of October 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 42CFR84.51]

[Page 517]
 
                         TITLE 42--PUBLIC HEALTH
 
    CHAPTER I--PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN 
                                SERVICES
 
PART 84_APPROVAL OF RESPIRATORY PROTECTIVE DEVICES--Table of Contents
 
  Subpart F_Classification of Approved Respirators; Scope of Approval; 
                    Atmospheric Hazards; Service Time
 
Sec. 84.51  Entry and escape, or escape only; classification.

    Respirators described in subparts H through L of this part shall be 
classified for use as follows:
    (a) Entry and escape. Respirators designed and approved for use 
during entry into a hazardous atmosphere, and for escape from a 
hazardous atmosphere; or
    (b) Escape only. Respirators designed and approved for use only 
during escape from a hazardous atmosphere.