[Code of Federal Regulations]
[Title 9, Volume 1]
[Revised as of January 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 9CFR91.21]

[Page 379]
 
                  TITLE 9--ANIMALS AND ANIMAL PRODUCTS
 
  CHAPTER I--ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF 
                               AGRICULTURE
 
PART 91_INSPECTION AND HANDLING OF LIVESTOCK FOR EXPORTATION
--Table of Contents
 
           Subpart D_Inspection of Vessels and Accommodations
 
Sec. 91.21  Ventilation.

    Each underdeck compartment on which animals are being transported 
aboard an ocean vessel shall be equipped with a system of mechanical 
ventilation that will furnish a complete change of air in each 
compartment every 2 minutes when deck height\8\ is less than 8 feet and 
every 2\1/2\ minutes when the deck height\8\ exceeds 8 feet. Spare 
motors and fans shall be available on board, for replacement or repair 
of the ventilation system during the voyage. A spare motor and fan of an 
approved type in working order shall be aboard the vessel for each type 
of motor or fan used. Net pen space in any compartment shall not exceed 
80 percent of the deck area.
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    \8\ Deck height is the height from the ceiling to the floor.

[42 FR 28990, June 7, 1977. Redesignated at 45 FR 86413, Dec 31, 1980]