Seeds and agricultural reports emanating from the Department of Agriculture may be mailed— (1) as penalty mail by the Secretary of Agriculture; and (2) during the 90-day period immediately following the expiration of their terms of office, as franked mail by Members of Congress . ( Pub. L. 91–375 , Aug. 12, 1970 , 84 Stat. 754 ; Pub. L. 97–69, § 5(b) , Oct. 26, 1981 , 95 Stat. 1043 .) Editorial Notes Amendments 1981—Par. (2). Pub. L. 97–69 substituted “during the 90-day period immediately” for “until the thirtieth day of June”. Statutory Notes and Related Subsidiaries Effective Date Section effective July 1, 1971 , pursuant to Resolution No. 71–9 of the Board of Governors. See section 15(a) of Pub. L. 91–375 , set out as a note preceding section 101 of this title . CFR Title Parts 39 20 , 111 , 113