52 BUREAU OF ENTOMOLOGY AND PLANT QUARANTINE [Jan.-Marcl* 
OTHER RESTRICTIVE ORDERS 
The regulation of the entry of nursery stock from foreign countries into the 
United States was specifically provided for in the Plant Quarantine Act The 
act further provides for the similar regulation of any other class of plants or 
plant products when the need therefor shall be determined. The entry of the 
plants and plant products listed below has been brought under such regulation. 
Nursery stock. — The conditions governing the entry of nursery stock and other 
plants and seeds from all foreign countries and localities are indicated above 
under "Foreign plant quarantines." (See Quarantine No. 37.) 
Potatoes. — The order of December 22, 1913, and the regulations issued there- 
under, revised, effective March 1, 1922, and amended, effective December 1, 
1936, restrict the importation of potatoes from all foreign countries and locali- 
ties except the Dominion of Canada and Bermuda, on account of injurious 
potato diseases and insect pests. The importation of potatoes is now authorized 
from Bermuda, Canada, Cuba, the Dominican Republic, Estonia, Latvia, Spain 
(including the Canary Islands), and the States of Chihuahua and Sonora, and 
the northern territory of Baja California, Mexico. 
Cotton and cotton wrappings. — The order of April 27, 1915, and the rules and 
regulations issued thereunder, revised, effective February 24, 1923, amended 
effective May 1, 1924, December 15, 1924, December 11, 1937, and July 1, 1938, re- 
strict the importation of cotton and cotton wrappings from all foreign countries 
and localities, on account of injurious insects, including the pink bollworm. 
Cottonseed products. — The two orders of June 23, 1917, and the rules and regu- 
lations issued thereunder, effective July 16, 1917, amended, effective August 7, 
1925, restrict the importation of cottonseed cake and meal and all other cotton- 
seed products except oil from all foreign countries and localities, and the impor- 
tation of cottonseed oil from Mexico, on account of injurious insects, including 
the pink bollworm: Provided, That these commodities which originate in, and 
are shipped directly from, the Imperial Valley, Baja California, Mexico, may 
enter without restriction. 
Plant safeguard regulations. — These rules and regulations, revised, effective 
December 1, 1932, provide safeguards for the landing or unloading for trans- 
shipment and exportation and for transportation and exportation in bond of 
restricted or prohibited plants and plant products when it is determined that 
such entry can be made without involving risk to the plant cultures of the 
United States and also provide for the safeguarding of such plant material at a 
port or within the territorial limits of the United States where entry or landing 
is not intended or where entry has been refused. 
Rules and regulations governing the movement of plants and plant products 
into and out of the District of Columbia. — These rules and regulations, revised 
effective April 30, 1938, are promulgated under the amendment to the Plant 
Quarantine Act of May 31, 1920. They provide for the regulation of the move- 
ment of plants and plant products, including nursery stock, from or into the 
District of Columbia and for the control of injurious plant diseases and insect 
pests within the said District. 
MISCELLANEOUS REGULATIONS 
Rules and regulations prohibiting the movement of cotton and cottonseed 
from Mexico into the United States and governing the entry into the United 
States of railway cars and other vehicles, freight, express, baggage, or other 
materials from Mexico at border points. — These rules and regulations, promul- 
gated June 23, 1917, pursuant to authority given in the appropriation act for 
the United States Department of Agriculture for the fiscal year 1918, and since 
repeated annually, and amended effective January 29, 1920, are designed to pre- 
vent the entry of the pink bollworm of cotton which is known to exist widely 
in Mexico. They provide for the examination of passengers' baggage, for the 
disinfection of railway cars, freight, express, and other shipments, and for the 
cleaning of domestic cars handling Mexican freight. All fees collected for dis- 
infecting railway cars are deposited in the United States Treasury as miscel- 
laneous receipts. 
The inspectors concerned in the enforcement of these regulations at border 
points are charged also with enforcement of restrictions on the entry of plants 
and plant products under various foreign plant quarantines. 
