[Code of Federal Regulations]
[Title 9, Volume 1]
[Revised as of January 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 9CFR3.36]

[Page 64-66]
 
                  TITLE 9--ANIMALS AND ANIMAL PRODUCTS
 
  CHAPTER I--ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF 
                               AGRICULTURE
 
PART 3--STANDARDS--Table of Contents
 
Subpart B--Specifications for the Humane Handling, Care, Treatment, and 
               Transportation of Guinea Pigs and Hamsters
 
Sec. 3.36  Primary enclosures used to transport live guinea pigs and hamsters.

    No person subject to the Animal Welfare regulations shall offer for 
transportation, or transport, in commerce any live guinea pig or hamster 
in a primary enclosure that does not conform to the following 
requirements:
    (a) Primary enclosures, such as compartments, transport cages, 
cartons, or crates, used to transport live guinea pigs or hamsters shall 
be constructed in such a manner that (1) the structural strength of the 
enclosure shall be sufficient to contain the live guinea pigs or 
hamsters and to withstand the normal rigors of transportation; (2) the 
interior of the enclosure shall be free from any protrusions that could 
be injurious to the live guinea pigs or hamsters contained therein; (3) 
the inner surfaces of corrugated fiberboard, cardboard, or plastic 
containers shall be covered or laminated with wire mesh or screen where 
necessary to prevent escape of the animals; (4) the openings of such 
enclosures are easily accessible at all times for emergency removal of 
the live guinea pigs or hamsters; (5) except as provided in paragraph 
(i) of this section, there are ventilation openings located on two 
opposite walls of the primary enclosure and the ventilation openings on 
each such wall shall be at least 16 percent of the total surface area of 
each such wall, or there are

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ventilation openings located on all four walls of the primary enclosure 
and the ventilation openings on each such wall shall be at least 8 
percent of the total surface area of each such wall: Provided, however, 
That at least one-third of the total minimum area required for 
ventilation of the primary enclosure shall be located on the lower one-
half of the primary enclosure and at least one-third of the total 
minimum area required for ventilation of the primary enclosure shall be 
located on the upper one-half of the primary enclosure; (6) except as 
provided in paragraph (i) of this section, projecting rims or other 
devices shall be on the exterior of the outside walls with any 
ventilation openings to prevent obstruction of the ventilation openings 
and to provide a minimum air circulation space of 1.9 centimeters (.75 
inches) between the primary enclosure and any adjacent cargo or 
conveyance wall; and (7) except as provided in paragraph (i) of this 
section, adequate handholds or other devices for lifting shall be 
provided on the exterior of the primary enclosure to enable the primary 
enclosure to be lifted without tilting and to ensure that the person 
handling the primary enclosure will not be in contact with the guinea 
pigs or hamsters.
    (b) Live guinea pigs or hamsters tranported in the same primary 
enclosure shall be of the same species and maintained in compatible 
groups.
    (c) Primary enclosures used to transport live guinea pigs or 
hamsters shall be large enough to ensure that each animal contained 
therein has sufficient space to turn about freely and to make normal 
postural adjustments.
    (d) Not more than 15 live guinea pigs shall be transported in the 
same primary enclosure. No more than 50 live hamsters shall be 
transported in the same primary enclosure.
    (e) In addition to the other provisions of this section, the 
following requirements shall also apply to primary enclosures used to 
transport live guinea pigs or hamsters:
    (1) Guinea pigs. (i) The interior height of primary enclosures used 
to tranport live guinea pigs weighing up to 500 grams shall be at least 
15.2 centimeters (6 inches) and the interior height of primary 
enclosures used to transport live guinea pigs weighing over 500 grams 
shall be at least 17.8 centimeters (7 inches).
    (ii) Each live guinea pig transported in a primary enclosure shall 
be provided a minimum amount of floor space in accordance with the 
following table:

                    Minimum space per live guinea pig
------------------------------------------------------------------------
                                                    Square      Square
                 Weight (grams)                  centimeters    inches
------------------------------------------------------------------------
Up to 350......................................        193.6          30
350 to 600.....................................        290.3          45
Over 600.......................................        354.8          55
------------------------------------------------------------------------

    (2) Hamsters. (i) The interior height of primary enclosures used to 
transport live hamsters shall be at least 15.2 centimeters (6 inches) 
except that in the case of dwarf hamsters such interior height shall be 
at least 12.7 centimeters (5 inches).
    (ii) Each live hamster transported in a primary enclosure shall be 
provided a minimum amount of floor space in accordance with the 
following table:

                                         Minimum space per live hamster
----------------------------------------------------------------------------------------------------------------
                                                                           Dwarf                   Other
                                                                 -----------------------------------------------
                               Age                                   Square      Square      Square      Square
                                                                  centimeters    inches   centimeters    inches
----------------------------------------------------------------------------------------------------------------
Weaning to 5 wks................................................        32.2         5.0        45.2           7
5 to 10 wks.....................................................        48.3         7.5        71.0          11
Over 10 wks.....................................................        58.1         9.0        96.8          15
----------------------------------------------------------------------------------------------------------------

    (f) Primary enclosures used to transport live guinea pigs or 
hamsters as provided in this section shall have solid bottoms to prevent 
leakage in shipment and shall be cleaned and sanitized in a manner 
prescribed in Sec. 3.31 of the standards, if previously used. Such 
primary enclosures shall contain clean

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litter of a suitable absorbent material, which is safe and nontoxic to 
the guinea pigs or hamsters, in sufficient quantity to absorb and cover 
excreta, unless the guinea pigs or hamsters are on wire or other 
nonsolid floors.
    (g) Primary enclosures used to transport live guinea pigs or 
hamsters, except where such primary enclosures are permanently affixed 
in the animal cargo space of the primary conveyance, shall be clearly 
marked on top and on one or more sides with the words ``Live Animals'' 
in letters not less than 2.5 centimeters (1 inch) in height, and with 
arrows or other markings, to indicate the correct upright position of 
the container.
    (h) Documents accompanying the shipment shall be attached in an 
easily accessible manner to the outside of a primary enclosure which is 
part of such shipment.
    (i) When a primary enclosure is permanently affixed within the 
animal cargo space of the primary conveyance so that the front opening 
is the only source of ventilation for such primary enclosure, the front 
opening shall open directly to the outside or to an unobstructed aisle 
or passageway within the primary conveyance. Such front ventilation 
opening shall be at least 90 percent of the total surface area of the 
front wall of the primary enclosure and covered with bars, wire mesh or 
smooth expanded metal.

[42 FR 31563, June 21, 1977, as amended at 43 FR 21163, May 16, 1978; 55 
FR 28882, July 16, 1990]