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OSHA Standards

State Standards

There are twenty-eight OSHA-approved State Plans, operating state-wide occupational safety and health programs. State Plans are required to have standards and enforcement programs that are at least as effective as OSHA's and may have different or more stringent requirements.

This section highlights OSHA standards, directives (instructions for compliance officers), standard interpretations (official letters of interpretation of the standards), and recommended exposure limits related to mercury.

General Industry (29 CFR 1910)

Shipyard Employment (29 CFR 1915)

  • 1915 Subpart I, Personal protective equipment
    • 1915.151, Scope, application and definitions
    • 1915.152, General requirements
    • Appendix A, Non-mandatory guidelines for hazard assessment, personal protective equipment (PPE) selection, and PPE training program
  • 1915 Subpart Z, Toxic and hazardous substances

Construction Industry (29 CFR 1926)

  • Removal of Obsolete Sections. CPL 02-02-006 [CPL 2-2.6 CH-1], (1985, June 3). Transmits page changes that remove sections containing policies and procedures superseded by guidelines set forth in the Field Operations Manual (FOM), OSHA Instruction CPL 2.45A.
  • Inorganic Mercury and its Compounds. CPL 02-02-006 [CPL 2-2.6], (1978, October 30). Provides guidelines to be followed in inspection, and where necessary, the issuance of citations, regarding exposure to mercury in the workplace.
  • Search all available directives.
Standard Interpretations
Recommended Exposure Limits

Includes exposure limit information from OSHA, the National Institute for Occupational Safety and Health (NIOSH), and the American Conference of Industrial Hygienists (ACGIH).

  Mercury, Alkyl Compounds Mercury, Aryl Compounds Mercury, Inorganic Compounds
     8-Hour TWA 0.01 mg/m3 0.1 mg/m3 0.1 mg/m3
     Ceiling 0.04 mg/m3 - -
     8-Hour TWA 0.01 mg/m3, Skin 0.05 mg/m3, Skin 0.05 mg/m3, Skin
     ST/Ceiling 0.03 mg/m3, (ST) Skin 0.1 mg/m3, (Ceiling) Skin 0.1 mg/m3, (Ceiling) Skin
     IDLH 2 mg/m3 10 mg/m3 10 mg/m3
     8-Hour TWA 0.01 mg/m3, Skin 0.1 mg/m3, Skin 0.025 mg/m3, Skin
     Short Term 0.03 mg/m3, Skin - -
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