[Code of Federal Regulations] [Title 40, Volume 27] [Revised as ofJuly 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR455.31] [Page 474] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 455--PESTICIDE CHEMICALS--Table of Contents Subpart B--Metallo-Organic Pesticide Chemicals Manufacturing Subcategory Sec. 455.31 Specialized definitions. (a) ``Metallo-organic active ingredients'' means carbon containing active ingredients containing one or more metallic atoms in the structure.