[Code of Federal Regulations] [Title 21, Volume 9] [Revised as of April 1, 2001] From the U.S. Government Printing Office via GPO Access [CITE: 21CFR1312.25] [Page 128] TITLE 21-FOOD AND DRUGS CHAPTER II--DRUG ENFORCEMENT ADMINISTRATION, DEPARTMENT OF JUSTICE PART 1312--IMPORTATION AND EXPORTATION OF CONTROLLED SUBSTANCES--Table of Contents Sec. 1312.25 Expiration date. An export permit shall not be valid after the date specified therein, which date shall conform to the expiration date specified in the supporting import certificate or other documentary evidence upon which the export permit is founded, but in no event shall the date be subsequent to 6 months after the date the permit is issued. Any unused export permit shall be returned by the permittee to the Drug Operations Section for cancellation. [36 FR 7815, Apr. 24, 1971. Redesignated at 38 FR 26609, Sept. 24, 1973, and amended at 45 FR 74715, Nov. 12, 1980; 51 FR 5319, Feb. 13, 1986; 53 FR 48244, Nov. 30, 1988; 62 FR 13969, Mar. 24, 1997]