1. American Association for Laboratory Sciences (AALAS) http://www.aalas.org/certification/tech_cert.aspx
2. American College of Laboratory Animal Medicine (ACLAM) http://www.aclam.org/certification
3. American College of Toxicology (ACT) http://www.actox.org/AboutACT/StrategicObjectiveOnAnimalUse/tabid/5183/Default.aspx
4. American Veterinary Medical Association 2013 https://www.avma.org/KB/Policies/Pages/Euthanasia-Guidelines.aspx
5. American Veterinary Medical Association (AVMA) https://www.avma.org/KB/Resources/Reference/AnimalWelfare/Pages/Animal-Welfare-Policy-statements.aspx