48 CFR 873.101: 873.101 Policy.

(a) General. In accordance with 38 U.S.C. 8153, to secure health-care resources which otherwise might not be feasibly available, or to effectively utilize certain other health-care resources, the Department of Veterans Affairs (VA) may make arrangements by contract for the mutual use, or exchange of use, of health-care resources between VA health-care facilities and any health-care provider, or other entity or individual. This part prescribes simplified procedures for contracts with entities not affiliated with VA under 38 U.S.C. 7302 to secure health-care resources that are a commercial service, or the use of medical equipment or space. VA may enter into such a contract if such resources are not, or would not be, used to their maximum effective capacity. (38 U.S.C. 8153)

(b) Precedence. The procedures in this part shall be used in conjunction with the Federal Acquisition Regulation (FAR) and other parts of the VA Acquisition Regulation (VAAR). However, when a policy or procedure in the FAR or another part of the VAAR is inconsistent with the procedures contained in this part, this part shall take precedence. (38 U.S.C. 8153)