(a) The authority to issue proposed and final designations, to issue proposed and final amendments of designations, and to withdraw designations under this part, and to disclose information that has been designated as protected under this part, is delegated by the Administrator to Associate Administrators and Assistant Administrators and to the Chief Counsel, their Deputies, and any individual formally designated as Acting Associate or Assistant Administrator, Acting Chief Counsel, or Acting Deputy of such offices.

(b) The officials identified in paragraph (a) of this section may further delegate the authority to issue proposed designations and proposed amendments to designations.