39 U.S. Code § 3627 - Adjusting free rates
If Congress fails to appropriate an amount authorized under section 2401(c) of this title for any class of mail sent free of postage under section 3217 or 3403–3406  the rate for that class may be adjusted in accordance with the provisions of this subchapter so that the increased revenues received from the users of such class will equal the amount for that class that the Congress was to appropriate.
 So in original. Probably should be followed by “of this title,”.
2006—Pub. L. 109–435 inserted section catchline and struck out former catchline which read the same.
1993—Pub. L. 103–123 substituted “free rates” for “free and reduced rates” in section catchline and “sent free of postage under section 3217 or 3403–3406” for “sent at a free or reduced rate under section 3217, 3403–3406, 3626, or 3629 of this title,” in text.
Pub. L. 103–31 substituted “3626, or 3629 of this title” for “or 3626 of this title,”.
1986—Pub. L. 99–410 substituted “3406” for “3405” and struck out “under the Federal Voting Assistance Act of 1955, or under the Overseas Citizens Voting Rights Act of 1975” after “3626 of this title,”.
1978—Pub. L. 95–593 inserted provisions relating to applicability of Overseas Citizens Voting Rights Act of 1975.
Amendment by Pub. L. 103–31 effective (1) with respect to a State that, on May 20, 1993, has a provision in the constitution of the State that would preclude compliance with section 20501 et seq. of Title 52, Voting and Elections, unless the State maintained separate Federal and State official lists of eligible voters, on the later of Jan. 1, 1996, or the date that is 120 days after the date by which, under the constitution of the State as in effect on May 20, 1993, it would be legally possible to adopt and place into effect any amendments to the constitution of the State that are necessary to permit compliance with section 20501 et seq. of Title 52 without requiring a special election, and (2) with respect to a State not described above, on Jan. 1, 1995, see section 13 of Pub. L. 103–31, set out as an Effective Date note under section 20501 of Title 52.