Can't verify this, just did a quick google on prohormone ban:
http://forums.anabolicreview.com/showthrea...ad.php?t=127338To amend the Controlled Substances Act to clarify the definition of anabolic steroids and to provide for research and education activities relating to steroids and steroid precursors.
Be it enacted by the Senate and House of Representatives of the United States of America in Congress assembled,
...
SEC. 2. AMENDMENTS TO THE CONTROLLED SUBSTANCES ACT.
by striking subparagraph (A) and inserting the following:
`(A) The term `anabolic steroid' means any drug or hormonal substance, chemically and pharmacologically related to testosterone (other than estrogens, progestins, corticosteroids, and dehydroepiandrosterone), and includes-- [the usual suspects]