The Tariff Act of 1930 is suspected by many of having a lot to do with the Crash and Great Depression, but nobody offers the kind of specific observations that come from having actually read the law. Here are the opening pages. Note the low rate for the precursor chemical for converting morphine into heroin. Inside, the law includes language which first appeared in the Pure Food Law of 1906 (enforced in 1907), regulating misleading descriptions. It also makes use of tariff provisions to enforce the 18th Amendment and Volstead Act, just as the newly-passed income tax law was used to enforce sumptuary laws--most publicly in the case of Al Capone.
[Submitted by Mr. HAWLEY]

        PUBLIC LAW No. 361
               [H. R. 2667]
An Act To provide revenue, to regulate commerce with foreign countries, to encourage the industries of the United States, to protect American labor, and for other purposes.
Be it enacted by the Senate and House of Representatives of the United States of America in Congress assembled,


SECTION 1. That on and after the day following the passage of this Act, except as otherwise specially provided for in this Act, there shall be levied, collected, and paid upon all articles when ii-nported from any foreign country into the United States or into any of its possessions (except the Philippine Islands, the Virgin Islands, American Samoa, and the island of Guam) the rates of duty which are prescribed by the schedules and paragraphs of the dutiable list of this title, namely:


PARAGRAPH 1. Acids and acid anhydrides: Acetic acid containing , by weight not more than 65 per centum of acetic acid, 1 3/8 cents per pound; containing by weight more than 65 per centum, 2 cents per pound; acetic anhydride, 3 cents per pound; boric acid, 1 cent per pound; chloroacetic acid, 5 cents per pound; citric acid, 17 cents per pound; formic acid, 3 cents per pound; lactic acid, containing by weight of lactic acid less than 30 per centum, 2 cents per pound; 30 per centum or more and less than 55 per centum, 4 cents per pound; and 55 per centum or more, 9 cents per pound: Provided, That any lactic-acid anhydride present shall be determined as lactic acid and included as such: And provided further, That the duty on lactic acid shall not be less than 25 per centum ad valorem; tannic acid, tannin, and extracts of nutgalls, containing by weight of tannic acid less than 50 per centum, 5 cents per pound; 50 per centum or more and not medicinal, 11 cents per pound; 50 per centum or more and medicinal, 18 cents per pound; tartaric acid, 8 cents per pound; arsenic acid, 3 cents per pound; gallic acid, 6 cents per pound; oleic acid or red oil, 20 per centum ad valorem; oxalic acid, 6 cents per pound; phosphoric acid, 2 cents per pound; pyrogallic acid, 12 cents per pound; carbon dioxide, weighing with immediate containers and carton, one pound or less per carton, 1 cent per pound on contents, immediate containers, and carton; and all other acids and acid anhydrides not specially provided for, 25 per centum ad valorem.
PAR. 2. Acetaldehyde, aldol or acetaldol, aldehyde ammonia, butyraldehyde, crotonaldehyde, paracetaldehyde; ethylene chlorohydrin, propylene chlorohydrin, butylene chlorohydrin; ethylene...
Resolved by the House of Representatives (the Senate concurring), That there be printed as a House document eighty thousand copies of the Tariff Law of 1930, in pamphlet form with an index, of which forty-five thousand copies shall be for the use of the House of Representatives, twenty-one thousand copies for the use of the Senate, three thousand copies for the use of the Committee on Ways and Means of the House of Representatives, three thousand copies for the use of the Committee on Finance of the Senate, five thousand copies for the use of the House document room, and three thousand copies for the use of the Senate document room.
Adopted June 16, 1930.