No person or persons, company or corporation, shall introduce into any State or Territory of the United States or the District of Columbia from any other State or Territory of the United States or the District of Columbia, or sell in the District of Columbia or in any Territory any dairy or food products which shall be falsely labeled or branded as to the State or Territory in which they are made, produced, or grown, or cause or procure the same to be done by others.

If any person or persons violate the provisions of section 16 of this title, either in person or through another, he shall be guilty of a misdemeanor and shall be punished by a fine of not less than $500 nor more than $2,000. The jurisdiction for the prosecution of said misdemeanor shall be within the district of the United States court in which it is committed.

Whenever the President is satisfied that there is good reason to believe that any importation is being made, or is about to be made, into the United States, from any foreign country, of any article used for human food or drink that is adulterated to an extent dangerous to the health or welfare of the people of the United States, or any of them, he may issue his proclamation suspending the importation of such articles from such country for such period of time as he may think necessary to prevent such importation; and during such period it shall be unlawful to import into the United States from the countries designated in the proclamation of the President any of the articles the importation of which is so suspended.

The standard grades for apples when packed in barrels which shall be shipped or delivered for shipment in interstate or foreign commerce, or which shall be sold or offered for sale within the District of Columbia or the Territories of the United States shall be as follows: Apples of one variety, which are well-grown specimens, hand picked, of good color for the variety, normal shape, practically free from insect and fungous injury, bruises, and other defects, except such as are necessarily caused in the operation of packing, or apples of one variety which are not more than 10 per centum below the foregoing specifications shall be “Standard grade minimum size two and one-half inches”, if the minimum size of the apples is two and one-half inches in transverse diameter; “Standard grade minimum size two and one-fourth inches”, if the minimum size of the apples is two and one-fourth inches in transverse diameter; or “Standard grade minimum size two inches”, if the minimum size of the apples is two inches in transverse diameter.

The barrels in which apples are packed in accordance with the provisions of sections 20 to 23 of this title may be branded in accordance with the provisions of section 20 of this title.

Barrels packed with apples shall be deemed to be misbranded within the meaning of sections 20 to 23 of this title—

First. If the barrel bears any statement, design, or device indicating that the apples contained therein are “Standard” grade and the apples when packed do not conform to the requirements prescribed by section 20 of this title.

Second. If the barrel bears any statement, design, or device indicating that the apples contained therein are “Standard” grade and the barrel fails to bear also a statement of the name of the variety, the name of the locality where grown, and the name of the packer or the person by whose authority the apples were packed and the barrel marked.

Any person, firm or corporation, or association who shall knowingly pack or cause to be packed apples in barrels or who shall knowingly sell or offer for sale such barrels in violation of the provisions of sections 20 to 23 of this title shall be liable to a penalty of $1 and costs for each such barrel so sold or offered for sale, to be recovered at the suit of the United States in any court of the United States having jurisdiction.

All articles known as oleomargarine, butterine, imitation, process, renovated, or adulterated butter, or imitation cheese, or any substance in the semblance of butter or cheese not the usual product of the dairy and not made exclusively of pure and unadulterated milk or cream, transported into any State or Territory or the District of Columbia, and remaining therein for use, consumption, sale, or storage therein, shall, upon the arrival within the limits of such State or Territory or the District of Columbia, be subject to the operation and effect of the laws of such State or Territory or the District of Columbia, enacted in the exercise of its police powers to the same extent and in the same manner as though such articles or substances had been produced in such State or Territory or the District of Columbia, and shall not be exempt therefrom by reason of being introduced therein in original packages or otherwise.