Use one of database links at the bottom to find government documents:
Group 1 Find government documents about Yellowstone National Park that were published before 1940.
Group 2 Find federal government documents about genetically modified foods.
Group 3 Find New York State government documents about lead poisoning that were published before 1970.
Group 4 Find congressional hearings on pesticides that were held after 2004.
Group 5 Find federal statistics on the use of agricultural chemicals and their effect on the environment.
Group 6 Find documents published between 1970 and 1990 about U.S. regulations regarding release of PCBs (polychlorinated biphenyls) by corporations.
Group 7 Find the earliest government document you can find about the appropriate technology movement.
Group 8 Find the earliest government document you can find on wind power.
Group 9 Find government documents on the Shoreham Nuclear Power Plant.
21 U.S.C. 301-399 (2012)