Idaho Code § 42-406
The department of water resources is empowered to make such rules and regulations as may be necessary to the proper administration of the provisions of this chapter.
[(42-406) 1915, ch. 111, sec. 6, p. 254; compiled and reen. C.L., sec. 3265s; C.S., sec. 5600; I.C.A., sec. 41-406.]