# Regulations
1 - 1910.147(c)(4) - The control of hazardous energy (lockout/tagout).
# Standard Interpretations
1 - 1910.147(c)(4) - Hazardous energy control lockout/tagout (LOTO) program documentation and certification requirements.
2 - 1910.147(c)(4) - Clarification of "authorized" and "affected" employees and proper energy control procedures.
3 - 1910.147(c)(4) - Lockout/tagout procedures, including work permits and groups of machines/equipment.