A prior section 3847, Pub. L. 99–198, title XII, § 1247, as added Pub. L. 101–624, title XIV, § 1445, Nov. 28, 1990, 104 Stat. 3603; amended Pub. L. 102–237, title II, § 204(8), Dec. 13, 1991, 105 Stat. 1855, which related to assistance for control of spread of weeds and pests, was omitted in the general amendment of this subchapter by Pub. L. 104–127.