# Directives
1 - National - STD 01-10-002 [STD 1-10.2] - Drains on Air Receivers; 29 CFR 1910.169(a)(2)(i) and (6)(2)
# Regulations
1 - 1910.169(a)(2)(i) - Air receivers.
# Standard Interpretations
1 - 1910.169(a)(2)(i) - Requirements for air receivers installed after August 27, 1971 and periodic retesting.