National Toxicology Program: Procedures Were Followed in Listing Alcoholic Beverage Consumption as a Known Carcinogen

Pursuant to a congressional request, GAO reviewed the National Toxicology Program (NTP), focusing on: (1) the procedures NTP uses to list a substance as either a known or a reasonably anticipated human carcinogen; and (2) whether NTP followed its procedures in determining to list alcoholic beverage consumption as a known human carcinogen.