List the primary legal requirements for lockout and tagout as stipulated by OSHA 29 CFR 1910.147.

1. Written Program: Employers must develop, implement, and enforce a written lockout/tagout program that outlines the specific procedures for controlling hazardous energy during maintenance or servicing of machines or equipment.

2. Energy Control Procedures: Employers must establish specific procedures for safely isolating and controlling hazardous energy sources, including the proper placement and removal of lockout/tagout devices.

3. Employee Training: Employers must provide training to all employees who may be exposed to hazardous energy sources, including proper lockout/tagout procedures, the importance of following the program, and the potential hazards of not following the procedures.

4. Periodic Inspections: Employers must conduct periodic inspections of the lockout/tagout program to ensure that procedures are being followed correctly and that equipment is in good working condition.

5. Lockout/Tagout Devices: Employers must provide employees with lockout/tagout devices that are durable, standardized, and clearly identifiable for each specific energy source.

6. Communication: Employers must establish a clear communication system to ensure that all employees are aware of when lockout/tagout procedures are in place and when it is safe to resume work.

7. Retraining: Employers must provide retraining to employees whenever there is a change in job assignments, new equipment is introduced, or if there are any deficiencies in the employee's knowledge or use of lockout/tagout procedures.

Primary Legal Requirements for Lockout and Tagout (OSHA 29 CFR 1910.147)

General Requirements:

- Employers must establish an energy control program to prevent the unexpected energization or startup of machines or equipment during servicing or maintenance.
- Energy isolating devices must be used to isolate equipment from energy sources.
- Isolating devices must be locked out or tagged out.

Specific Requirements:

Section 1910.147(b)(1)
- Procedure Development: Employers must develop written lockout/tagout procedures that include specific steps for shutting down, isolating, and securing equipment.

Section 1910.147(b)(2)
- Training: Employees who will use energy isolating devices must receive training on the lockout/tagout procedure and the hazardous energy sources present.

Section 1910.147(b)(3)
- Energy Isolation: Machines or equipment must be isolated from energy sources using one of the following methods:
- Energy isolating valves
- Circuit breakers
- Disconnect switches
- Other energy isolation devices

Section 1910.147(b)(4)
- Lockout/Tagout Devices: Only authorized employees may apply lockout or tagout devices.
- Lockout devices must be used to prevent the activation of isolating devices.
- Tagout devices must be conspicuously placed at the point of operation and must warn against re-energizing the equipment.

Section 1910.147(b)(6)
- Verification of Isolation: Authorized employees must verify that equipment is isolated from energy sources by:
- Operating the equipment or a remote test point to confirm that energy has been isolated
- Blocking or grounding the energy source
- Using an instrument (e.g., voltage tester) to demonstrate the absence of energy

Section 1910.147(b)(9)
- Warning Signs: Warning signs must be placed at all energy isolation points to alert employees to the presence of lockout/tagout devices.

Section 1910.147(c)
- Release and Removal: Equipment may only be re-energized by authorized employees after:
- Verifying that the equipment is ready to be re-energized
- Removing all lockout/tagout devices
- Notifying all affected employees