# Letters of Interpretation
1 - 1910.134(e)(6)(i)(A) - Whether the respiratory protection medical evaluation may consider factors beyond respirator use
2 - 1910.134(e)(6), 1910.134(e)(6)(i)(A) - Whether the respiratory protection medical evaluation may consider factors beyond respirator use
3 - 1910.134(e)(6)(i) - Retention of Spirometry Records
4 - 1910.134(e)(6)(i)(B) - Mandatory annual blood work requirements in OSHA's Respiratory Protection and Ethylene Oxide standards
# Federal Register
1 - 1910.134(e)(6) - 82:2470-2757 - Occupational Exposure to Beryllium - PDF
2 - 1910.134(e)(6) - 81:16285-16890 - Occupational Exposure to Respirable Crystalline Silica; Final Rule - PDF
# Regulations
1 - - Respiratory protection.