• Subpart A [§ 84.1 - § 84.3] - Subpart A—General Provisions

• Subpart B [§ 84.10 - § 84.12] - Subpart B—Application for Approval

• Subpart C [§ 84.20 - § 84.24] - Subpart C—Fees

• Subpart D [§ 84.30 - § 84.36] - Subpart D—Approval and Disapproval

• Subpart E [§ 84.40 - § 84.43] - Subpart E—Quality Control

• Subpart F [§ 84.50 - § 84.53] - Subpart F—Classification of Approved Respirators; Scope of Approval; Atmospheric Hazards; Service Time

• Subpart G [§ 84.60 - § 84.66] - Subpart G—General Construction and Performance Requirements

• Subpart H [§ 84.70 - § 84.104] - Subpart H—Self-Contained Breathing Apparatus

• Subpart 0 -

• Subpart I [§ 84.110 - § 84.126] - Subpart I—Gas Masks

• Appendix - Tables to Subpart H of Part 84

• Subpart J [§ 84.130 - § 84.163] - Subpart J—Supplied-Air Respirators

• Subpart K [§ 84.170 - § 84.181] - Subpart K—Air-Purifying Particulate Respirators

• Subpart L [§ 84.190 - § 84.207] - Subpart L—Chemical Cartridge Respirators

• Subpart M - Subpart M [Reserved]

• Subpart N [§ 84.250 - § 84.257] - Subpart N—Special Use Respirators

• Subpart O [§ 84.300 - § 84.311] - Subpart O—Closed-Circuit Escape Respirators

• Subpart P - Subparts P-JJ [Reserved]

• Appendix Appendix A - Appendix A to Part 84—Annual (Fixed) Respirator Certification Fees

• Appendix Appendix B - Appendix B to Part 84—Application-Based Respirator Certification Fees