1. USDA APHIS. Final rule. Animal welfare; definition of animal. Federal Register 69(108), 31513–31514 (4 June 2004).
2. USDA APHIS. Advance notice of proposed rulemaking and request for comments. Animal welfare; regulations and standards for birds, rats, and mice. Federal Register 69(108), 31537–31541 (4 June 2004).
3. AAALAC International. AAALAC International forms European and North American Sections of the Council on Accreditation. (8 March 2004).
http://www.aaalac.org
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4. S 2346. Pet Safety and Protection Act of 2004. 108th Congress, 2nd Session. (26 April 2004).
5. HR 4454. Ecoterrorism Prevention Act of 2004 (Introduced in House). 108th Congress, 2nd Session. (20 May 2004).