((a)) The provisions of subchapter II of chapter 5 of title 5 shall apply to any agency proceeding and any agency action taken under this chapter, including the issuance of rules and regulations, and the terms “agency proceeding” and “agency action” shall have the meaning specified in subchapter II of chapter 5 of title 5.

((b)) In any proceeding under this chapter for the granting, suspending, revoking, or amending of any license, or application to transfer control thereof, and in any proceeding for the issuance or modification of rules and regulations dealing with the activities of licensees, the Secretary shall grant a hearing upon the request of any person whose interest may be affected by the proceeding, and shall admit any such person as a party to such proceeding. Any final order entered in any such proceeding shall be subject to judicial review in the manner prescribed in chapter 158 of title 28, and to the provisions of chapter 7 of title 5.