Representatives from Major League Baseball, the NFL, NBA, NHL, college and high school sports and horse racing will be part of a House Energy and Commerce Committee panel on Feb. 27.
The Subcommittee on Commerce, Trade and Consumer Protection will hold hearings on Feb. 27. The August 2007, the same committee launched an investigation into steroid use in professional wrestling.
According to a committee release, chairman Bobby Rush (D-Ill) plans to introduce legislation after gathering witness testimony.
Sen. George Mitchell, who authored baseball's report on steroids, has been invited to attend along with representatives from a variety of leagues and organizing bodies.
NHL commissioner Gary Bettman and NHLPA executive director Paul Kelly said they will speak. "We'll be providing Congress with an update on our program and how it's operated and evolved in its first 2½ years of operation," league deputy commissioner Bill Daly told the Toronto Star.
Alexander Waldrop, president of the National Thoroughbred Racing Association, has said he will attend.
Others on the witness list are to be determined.