The provisions of Section 2 B [73-18-2 B NMSA 1978] and Section 3 to Section 25 [73-18-3 to 73-18-24 NMSA 1978], inclusive, of this act shall apply only to conservancy districts heretofore or hereafter organized or existing under the Conservancy Act and which heretofore or hereafter shall have entered into a contract with the United States under the reclamation law. History: Laws 1939, ch. 148, § 22; 1941 Comp., § 77-3122; 1953 Comp., § 75-32-22.