The Office of Workers' Compensation Programs (hereinafter the Office or OWCP) is that division of the U.S. Department of Labor which has been empowered by the Secretary of Labor to carry out his or her functions under section 415 and part C of title IV of the Act. As noted throughout this part 726 the Office shall perform a number of functions with respect to the regulation of both the self-insurance and commercial insurance programs. All correspondence with or submissions to the Office should be addressed as follows: Division of Coal Mine Workers' Compensation, Office of Workers' Compensation Programs, U.S. Department of Labor, Washington, DC 20210.