"This is part of a series of guidance documents developed under the Occupational Safety and Health Administration's (OSHA's) Temporary Worker Initiative (TWI). This Initiative focuses on compliance with safety and health requirements when temporary workers are employed under the joint employment of a staffing agency and a host employer. [...] The lockout/tagout standard addresses the practices and procedures necessary to prevent the sudden release of hazardous energy while workers perform servicing or maintenance activities."
TWI Bulletin No. 10; Temporary Worker Initiative Bulletin No. 10
Occupational Safety and Health Administration: https://www.osha.gov/