Trenbolone and all esters is illegal if intended for injection, oral, and human use. It is only legal when in implant form and intended for non-human use. That is the way it has been since '96 and I can't find anything to say it has changed.
UNITED STATES CODE SERVICE
Copyright (c) 1996, Lawyers Cooperative Publishing
*** CURRENT THROUGH 104-115, 3/12/96, EXCEPT FOR PLs 104, 106, 114 ***
TITLE 21. FOOD AND DRUGS
CHAPTER 13. DRUG ABUSE PREVENTION AND CONTROL
CONTROL AND ENFORCEMENT
INTRODUCTORY PROVISIONS
21 USCS Section 802 (1996)
Section 802. Definitions
(41)
The term "anabolic steroid" means any drug or hormonal substance, chemically and pharmacologically related to testosterone (other than estrogens, progestins, and corticosteroids) that promotes muscle growth, and includes--
(i) boldenone,
(ii) chlorotestosterone,
(iii) clostebol,
(iv) dehydrochlormethyltestosterone,
(v) dihydrotestosterone,
(vi) drostanolone,
(vii) ethylestrenol,
(viii) fluoxymesterone,
(ix) formebulone,
(x) mesterolone,
(xi) methandienone,
(xii) methandranone,
(xiii) methandriol,
(xiv) methandrostenolone,
(xv) methenolone,
(xvi) methyltestosterone,
(xvii) mibolerone,
(xviii) nandrolone,
(xix) norethandrolone,
(xx) oxandrolone,
(xxi) oxymesterone,
(xxii) oxymetholone,
(xxiii) stanolone,
(xxiv) stanozolol,
(xxv) testolactone,
(xxvi) testosterone,
(xxvii) trenbolone, and
(xxviii) any salt, ester, or isomer of a drug or substance described or listed in this paragraph, if that salt, ester, or isomer promotes muscle growth.
UNITED STATES CODE SERVICE
Copyright (c) 1996, Lawyers Cooperative Publishing
*** CURRENT THROUGH 104-115, 3/12/96, EXCEPT FOR PLs 104, 106, 114 ***
TITLE 21. FOOD AND DRUGS
CHAPTER 13. DRUG ABUSE PREVENTION AND CONTROL
CONTROL AND ENFORCEMENT
INTRODUCTORY PROVISIONS
21 USCS Section 812 (1996)
Section 812. Schedules of controlled substances
C. SCHEDULE III.
(a) Unless specifically excepted or unless listed in another schedule, any material, compound, mixture, or preparation which contains any quantity of the following substances having a stimulant effect on the central nervous system:
Amphetamine, its salts, optical isomers, and salts of its optical isomers.
Phenmetrazine and its salts.
Any substance (except an injectable liquid) which contains any quantity of methamphetamine, including its salts, isomers, and salts of isomers.
Methylphenidate.
(b) Unless specifically excepted or unless listed in another schedule, any material, compound, mixture, or preparation which contains any quantity of the following substances having a depressant effect on the central nervous system:
Any substance which contains any quantity of a derivative of barbituric acid, or any salt of a derivative of barbituric acid.
Chorhexadol.
Glutethimide.
Lysergic acid.
Lysergic acid amide.
Methyprylon.
Phencyclidine.
Sulfondiethylmethane.
Sulfonethylmethane.
Sulfonmethane.
(c) Nalorphine.
(d) Unless specifically excepted or unless listed in another schedule, any material, compound, mixture, or preparation containing limited quantities of any of the following narcotic drugs, or any salts thereof:
Not more than 1.8 grams of codeine per 100 milliliters or not more than 90 milligrams per dosage unit, with an equal or greater quantity of an isoquinoline alkaloid of opium.
Not more than 1.8 grams of codeine per 100 milliliters or not more than 90 milligrams per dosage unit, with one or more active, nonnarcotic ingredients in recognized therapeutic amounts.
Not more than 300 milligrams of dihydrocodeinone per 100 milliliters or not more than 15 milligrams per dosage unit, with a fourfold or greater quantity of an isoquinoline alkaloid of opium.
Not more than 300 milligrams of dihydrocodeinone per 100 milliliters or not more than 15 milligrams per dosage unit, with one or more active, nonnarcotic ingredients in recognized therapeutic amounts.
Not more than 1.8 grams of dihydrocodeine per 100 milliliters or not more than 90 milligrams per dosage unit, with one or more active, nonnarcotic ingredients in recognized therapeutic amounts.
Not more than 300 milligrams of ethylmorphine per 100 milliliters or not more than 15 milligrams per dosage unit, with one or more active, nonnarcotic ingredients in recognized therapeutic amounts.
Not more than 500 milligrams of opium per 100 milliliters or per 100 grams, or not more than 25 milligrams per dosage unit, with one or more active, nonnarcotic ingredients in recognized therapeutic amounts.
Not more than 50 milligrams of morphine per 100 milliliters or per 100 grams with one or more active, nonnarcotic ingredients in recognized therapeutic amounts.
(e) Anabolic steroids.