# Directives
1 - National - STD 03-12-004 [STD 3-12.4] - Interpretation of "Normal Operating Conditions" for Overhead and Gantry Cranes, and Derricks
# Regulations
1 - 1910.179(g)(2)(i) - Overhead and gantry cranes.
# Standard Interpretations
1 - 1910.179(g)(2)(i) - "Normal operating conditions" for overhead and gantry cranes include maintenance activity.