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39 U.S. Code § 3405 - Markings

All matter relating to blind or other handicapped persons mailed under section 3403 or 3404 of this title, shall bear the words “Free Matter for the Blind or Handicapped”, or words to that effect specified by the Postal Service, in the upper right-hand corner of the address area.

(Pub. L. 91–375, Aug. 12, 1970, 84 Stat. 758.)
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.