94 PLANT QUARANTINE AND CONTEOL ADMINISTRATION [April-June, 
such modification as to duration and dates of commencement and termination 
as may be authorized by the United States Department of Agriculture on 
presentation of evidence that such modification is necessary or desirable and 
does not involve increase of risk of propagating the Mediterranean fruit fly. 
(3) Prior to the commencement of such host-free period each year, all ripe 
or ripening citrus fruits growing within the protective zones shall be removed 
from the trees for shipment, destruction, or processing. 
(4) No host vegetables shall be planted or grown within the protective zones 
which will mature or reach a stage of development susceptible to infestation 
during the host-free period. 
(5) No host fruits or vegetables of any kind shall be permitted to grow or 
exist within the protective zones at any time during the host-free period except 
citrus fruit on the trees in such stages of immaturity that in the judgment of 
the inspector it is not susceptible to infestation, and host fruits and vegetables 
in storage or on retail sale for immediate consumption, stored or maintained 
under such conditions and for such periods of time as shall be approved by the 
inspector. 
(C) Inspection 
A system of inspection satisfactory to the United States Department of Agri- 
culture shall be carried on throughout the year to provide for the efficient 
enforcement of these regulations and for the prompt discovery of any infes- 
tations which may occur. 
(D) Intrastate Movement 
The intrastate movement of all restricted articles within the quarantined 
State shall be brought under such control as shall be satisfactory to the United 
States Department of Agriculture. 
(E) Control of Production and Distribution Agencies 
All groves, orchards, truck gardens, packing plants, and all other places in 
which fruits or vegetables are produced, packed, processed, manufactured, or 
otherwise utilized or permitted to remain within the quarantined State shall be 
operated and maintained under the direct control of the State in such a manner 
that in the judgment of the inspector fruit flies could not exist therein or be 
disseminated therefrom. 
REGULATION 3. RESTRICTIONS ON THE INTERSTATE MOVEMENT OF CITRUS FRUITS 
FROM A QUARANTINED STATE 
Section A. Control of Movement 
(1) Citrus fruits, except such as have been manufactured or processed in 
such a manner as in the judgment of the inspector to eliminate danger of carry- 
ing the Mediterranean fruit fly, shall not be moved or allowed to be moved 
interstate from a quarantined State to or through any point outside thereof 
unless a permit shall have been issued therefor by the United States Department 
of Agriculture. 
(2) Citrus fruit in bulk, including culls and drops in any manner, shall not 
be moved or allowed to be moved interstate from any part of a quarantined 
State; nor shall any interstate movement of citrus fruit by mail or by auto- 
mobile truck be allowed. 
(3) Citrus fruit may be moved under permit from a quarantined State 
(except as to fruit produced in an infested zone), only when packed in standard 
commercial boxes and when transported in refrigerator or ventilated cars or boats 
equipped for refrigeration, such cars or boats to be iced or screened in manner 
satisfactory to the inspector. This authorization shall apply both to freight 
and express movement. Rail shipments shall move only in car lots: Pro- 
vided, That permittees may ship by express in refrigerator or ventilated express 
cars in less than car lots citrus fruits produced in approved groves (see section 
B, 3 (c) hereof), when such fruit is packed in standard commercial boxes, each 
of which has a permit tag issued by the United States Department of Agricul- 
ture securely attached to the outside thereof : Provided further, That whenever 
such shipment shall pass through any protective or any infested zone the car 
containing such shipment shall be and shall remain securely screened or closed 
in a manner satisfactory to the inspector throughout the entire time such ship- 
