U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
A clock having a face of at least 12.7 cm (5 in.) in diameter must be mounted in a position that can be observed from the principal operating position.
Regulations most recently checked for updates: Aug 27, 2025
A clock having a face of at least 12.7 cm (5 in.) in diameter must be mounted in a position that can be observed from the principal operating position.