[Code of Federal Regulations]
 [Title 21, Volume 1]
 [Revised as of April 1, 2002]
 From the U.S. Government Printing Office via GPO Access
 [CITE: 21CFR73.200]
 
 [Page 354-355]
 
                         TITLE 21--FOOD AND DRUGS
 
 CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN
                                 SERVICES
 
 PART 73--LISTING OF COLOR ADDITIVES EXEMPT FROM CERTIFICATION--Table of Contents
 
                             Subpart A--Foods
 
 Sec. 73.200  Synthetic iron oxide.
 
     (a) Identity. (1) The color additive synthetic iron oxide consists
 of any one or any combination of synthetically prepared iron oxides,
 including the hydrated forms. It is free from admixture with other
 substances.
     (2) Color additive mixtures for food use made with synthetic iron
 oxide
 
 [[Page 355]]
 
 may contain only those diluents that are suitable and that are listed in
 this subpart as safe for use in color additive mixtures for coloring
 foods.
     (b) Specifications. (1) Synthetic iron oxide for human food use
 shall conform to the following specifications:
 
 Arsenic (as As), not more than 3 parts per million.
 Lead (as Pb), not more than 10 parts per million.
 Mercury (as Hg) , not more than 1 part per million.
 
     (2) Synthetic iron oxide for dog and cat food use shall conform to
 the following specifications:
 
 Arsenic (as As), not more than 5 parts per million.
 Lead (as Pb), not more than 20 parts per million.
 Mercury (as Hg), not more than 3 parts per million.
 
     (c) Uses and restrictions. (1) Synthetic iron oxide may be safely
 used for the coloring of sausage casings intended for human consumption
 in an amount not exceeding 0.10 percent by weight of the finished food.
     (2) Synthetic iron oxide may be safely used for the coloring of dog
 and cat foods in an amount not exceeding 0.25 percent by weight of the
 finished food.
     (d) Labeling requirements. The label of the color additive and any
 mixture prepared therefrom intended solely or in part for coloring
 purposes shall conform to the requirements of Sec. 70.25 of this
 chapter.
     (e) Exemption from certification. Certification of this color
 additive is not necessary for the protection of the public health, and
 therefore batches thereof are exempt from the certification requirements
 of section 721(c) of the act.
 
 [42 FR 15643, Mar. 22, 1977, as amended at 59 FR 10578, Mar. 7, 1994]