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Exceptions arc made for purposes of scientific research only, 
by the permission, in each instance, of the Bureau of Quarantine, 
People's Commissariat of Agriculture, Union of Soviet Socialist Republics, 
specifying the quarantine measures to "be observed. 
Group 2 includes not only insects and diseases not known to 
occur in the Union of Soviet Socialist Republics, but also several 
especially injurious species previously introduced into isolated regions 
of the Union, with respect to which quarantine measures are undertaken 
with the object of eliminating the foci of infection. 
The presence of the pests included in group 2 may necessitate 
the prohibition of entry against an entire imported shipment in the 
event that any one of the insects or diseases of this group is discover- 
ed upon quarantine inspection, in case the application of the existing 
quarantine measures of separation and disinfection will not fully 
insure the freeing of the shipment from infection. 
In the latter contingency infected portions of shipments are 
subject to return to the original shipper or to destruction. Appro- 
priate legal records are ma.de of such action. 
Group 3 includes both insects and diseases not known to occur 
in the Union of Soviet Socialist Republics and those present in particular 
parts of the Union and subject, therefore, to the regulations of domestic 
quarantines. 
Quarantine measures concerning insects and diseases of this 
group include the disinfection of shipments, regulation, restriction 
of areas of ultimate utilization and the promulgation of measures, 
through special orders, which may be applied to material intended for 
planting and sowing, in order to insure that the distribution of the 
quarantined pests shall be prevented, thus: 
Release of the material through established quarantine green- 
houses, nurseries, and areas; detention of plants .under conditions 
of close supervision which may result in the discovery of infection 
not apparent at the time of importation; the adoption of aseptic 
methods of propaga-tion, in some instances, of plants subject to control 
under conditions of isolation, etc. 
Plants or plant products intended for propagation found to be 
infested by insects and diseases not known to occur in the Union of 
Soviet Socialist Republics and not named in this list, may be allowed 
to enter under the conditions prescribed for such products under Group 2. 
In accordance with the provisions of article 4 of Decree No. 
2598 of the Soviet of People's Commissars of the Union of Soviet Socialist 
Republics of November 20, 1934, all institutions, organizations, and 
individuals must procure a permit in advance from the Bureau of Foreign 
and Domestic Quarantine, People's Commissariat of Agriculture, Union of 
Soviet Socialist Republics, to import live plants, planting and sowing 
material, and agricultural products from foreign countries. 
