Amendments
2006—[Pub. L. 109–435, title II, § 206], Dec. 20, 2006, [120 Stat. 3217], added chapter heading and analysis and struck out former chapter heading “POSTAL RATES, CLASSES, AND SERVICES” and analysis consisting of items for subchapters I to V and items 3601 to 3604, 3621 to 3629, 3641 and 3642, 3661 to 3663, and 3681 to 3685.
1998—[Pub. L. 105–277, div. A, § 101(h)] [title VI, § 648(b)], Oct. 21, 1998, [112 Stat. 2681–480], 2681–528, added item 3663.
1993—[Pub. L. 103–123, title VII, § 704(a)(3)(B)(ii)], Oct. 28, 1993, [107 Stat. 1270], substituted “free rates” for “free and reduced rates” in item 3627 and added item 3642.
[Pub. L. 103–31, § 8(h)(4)], May 20, 1993, [107 Stat. 86], added item 3629.
