This part establishes rules to assure that the services of volunteers in the Foster Grandparent Program, the Senior Companion Program, and The Retired and Senior Volunteer Program (RSVP), are limited to activities which would not otherwise be performed by employed workers and which will not supplant the hiring of, or result in the displacement of employed workers or impair existing contracts for service. This part implements section 404(a) of the Domestic Volunteer Service Act of 1973, Public Law 93-113 (the “Act”).