TMDL Final Rule (PDF | 543 KB)
Environmental Protection Agency.
Provides the text of the Jul 13, 2000 Federal Register notice that contains the total maximum daily load final rule. See also the final rule fact sheet (PDF | 25 KB).

Total Maximum Daily Loads
USDA. NAL. Water Quality Information Center.
Retrieves TMDL-related documents from WQIC's database of online documents covering water and agriculture.

Total Maximum Daily Load Research
USDA. National Agricultural Library.
Searches for article citations in the NAL catalog (AGRICOLA) on total maximum daily loads. Also search for books from 2000 to the present.

Total Maximum Daily Load Program
Environmental Protection Agency.
Includes The Twenty Needs Report: How Research Can Improve the TMDL Program, Jul 2002 (PDF | 1.1 MB). Also provides details about TMDL meetings and training courses, including Watersheds 103: TMDL Training for Practitioners, and links to EPA Regional TMDL (and other) Web sites.

TMDLs and Agriculture in the West (PDF | 197 KB)
Environmental Protection Agency.
A fact sheet focusing on watershed-level approaches useful in the western United States.

Questions and Answers about TMDLs
New Mexico Environment Department.
A short question-and-answer fact sheet.