62 BUREAU OF ENTOMOLOGY AND PLANT QUARANTINE [July-Sept. 
Department of Agriculture, and the Secretary of Agriculture shall make and 
collect such charge as will cover, as nearly as may be, the average cost of ma- 
terials, facilities, and special labor used in performing such disinfection, and 
fees so collected shall be covered into the Treasury of the United States as 
miscellaneous receipts. 
Approved, January 31, 1942. 
MEXICAN BORDER REGULATIONS 
[Press notice] 
September 4, 1942. 
Approval was given by the Secretary of Agriculture today to regulations estab- 
lishing inspection and treatment procedures under the Mexican Border Act 
approved January 31, 1942, relating to safeguard measures necessary to prevent 
the incidental introduction of the pink bollworm of cotton and other insects and 
plant diseases into this country from Mexico by means of railway cars and other 
vehicles, as well as in cargo, or in waste and debris likely to carry pests. 
Authority for inspection and cleaning and for fumigation or other treatment 
of these cars, vehicles, and contaminating materials has been granted by Congress 
on a yearly basis since 1917, and regulations for carrying out these activities 
have likewise been in force since that date. With the enactment of the Mexican 
Border Act providing in a permanent manner for these protective functions it has 
become necessary to revise existing regulations to bring them under the authority 
of the new Act and into accord with its terms. The revision thus accomplished 
follows closely in scope and procedure the regulations long effective in this field. 
B. E. P. Q. — Mex. Border Regs. ' Regulations under the Mexican Border Act, approved 
January 31, 1942. Effective September 8, 1942. 
TITLE 7— AGRICULTURE 
Chapter III — Bureau of Entomology and Plant Quarantine 
Part 320 — The Mexican Border Regulations 
introductory note 
Authority to inspect and apply safeguards to railway cars, vehicles, and various 
materials entering this country from Mexico has been granted by Congress on an 
annual basis since 1917 and regulations covering these activities have likewise 
been in force since that date. With the enactment of the Mexican Border Act, 
approved January 31, 1942, it has become necessary to revise the existing regula- 
tions so as to bring them under the authority of the new act, and into accord with 
its terms. The revision thus accomplished follows closely in scope and procedure 
the previous regulations, care being taken to avoid encroachment on the field 
covered by the Plant Quarantine Act. 
ORDER OF THE SECRETARY OF AGRICULTURE 
By virtue of the authority vested in the Secretary of Agriculture by the act, 
approved January 31, 1942, entitled, "To provide for regulating, inspecting, clean- 
ing, and, when necessary, disinfecting railway cars, other vehicles, and other 
materials entering the United States from Mexico" (Public Law 426, 77th Con- 
gress), I, Grover B. Hill, Acting Secretary of Agriculture, do prescribe and pro- 
mulgate the following regulations to be in force and effect on September 8, 1942. 
THE MEXICAN BORDER REGULATIONS 
ArxHoniTY : §§ 320.1 to 320.9. inclusive, issued under the act approved January 31, 1942, 
entitled "To provide for regulating, inspecting, cleaning, and, when necessary, disinfecting 
railway cars, other vehicles, and other materials entering the United States from Mexico, 
(Public Law 426, 77 th Cong.). 
