You must do the following before allowing another employer's personnel to service or maintain machines or equipment if your energy control procedures require they be locked or tagged out:

(1) Inform the outside employer of your lockout or tagout procedures.

(2) Make sure the outside employer informs you of their lockout or tagout procedures.

(3) Make sure you and the outside employer confirm that all employees understand and will follow the restrictions of the other employer's energy control program.