[Code of Federal Regulations]
[Title 21, Volume 6]
[Revised as of January 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 21CFR573.225]

[Page 500]
 
                        TITLE 21--FOOD AND DRUGS
 
CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN 
                          SERVICES (CONTINUED)
 
PART 573--FOOD ADDITIVES PERMITTED IN FEED AND DRINKING WATER OF ANIMALS--Table of Contents
 
                    Subpart B--Food Additive Listing
 
Sec.  573.225  1,3-Butylene glycol.

    The food additive 1,3-butylene glycol (1,3-butanediol) may be safely 
used in accordance with the following prescribed conditions:
    (a) It complies with the specifications in Sec.  173.220(a) of this 
chapter.
    (b) It is intended for use in swine feed as a source of energy.
    (c) It is to be thoroughly mixed into feed at levels not to exceed 9 
percent of the dry matter of the total ration.
    (d) 1,3-Butylene glycol should be mixed in feed with equipment 
adapted for the addition of liquids, and the feed should be mixed not 
less than 5 minutes after its addition.

[53 FR 40061, Oct. 13, 1988]