The Anabolic Steroids Control Act of 1990 placed anabolic steroids into Schedule III of the Controlled Substances Act (CSA) as of February 27, 1991.

When did the steroid era end?

Unlike other MLB "eras," there is no defined start or end time to "the steroids era," though it is generally considered to have run from the late '80s through the late 2000s. Though steroids have been banned in MLB since 1991, the league did not implement leaguewide PED testing until 2003.

When did steroids become legal?

Congress passed the Anabolic Steroid Act of 1990 to respond to the increasing levels of illicit traffic in steroids. This Act identified anabolic steroids as a separate drug class and categorized over two dozen drugs as controlled substances.