[Code of Federal Regulations] [Title 40, Volume 22] [Revised as of July 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR180.491] [Page 477] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 180_TOLERANCES AND EXEMPTIONS FROM TOLERANCES FOR PESTICIDE CHEMICALS IN FOOD--Table of Contents Subpart C_Specific Tolerances Sec. 180.491 Propylene oxide; tolerances for residues. (a) General. Propylene oxide may be safely used in or on foods in accordance with the following prescribed conditions: (1) It is intended as a fumigant in or on bulk quantities of cocoa, gums, processed spices, and processed nutmeats (except peanuts) when such bulk foods are to be further processed into a final food form. (2) It is applied in fumigation chambers not more than one time at a temperature not in excess of 125 [deg]F. The maximum period of fumigation shall not exceed 4 hours for cocoa, processed nutmeats (except peanuts), and processed spices. For edible gums, the maximum duration shall be 24 hours. (3) When used as described in paragraphs (a)(1) and (2) of this section, residues shall not exceed the following limitations: ------------------------------------------------------------------------ Parts per Commodity million ------------------------------------------------------------------------ Cocoa bean, bean............................................ 300 Gum, edible................................................. 300 Nutmeat, processed, except peanuts.......................... 300 Spices, processed........................................... 300 ------------------------------------------------------------------------ (4) When used as a mixture with carbon dioxide (92 parts of carbon dioxide to 8 parts of propylene oxide on a weight/weight basis), all commodities listed in paragraph (a)(3) of this section may be processed not more than one time for a period not to exceed 48 hours and at a temperature not to exceed 125 [deg]F. (5) To assure safe use of the pesticide, the label and labeling of the pesticide formulation shall conform to the label an labeling registered by the U. S. Environmental Protection Agency. (b) Section 18 emergency exemptions. [Reserved] (c) Tolerances with regional registrations. [Reserved] (d) Indirect or inadvertent residues. [Reserved] [65 FR 33702, May 24, 2000, as amended at 68 FR 39430, July 1, 2003]