[Code of Federal Regulations] [Title 21, Volume 3] [Revised as of April 1, 2001] From the U.S. Government Printing Office via GPO Access [CITE: 21CFR178.3730] [Page 411] TITLE 21--FOOD AND DRUGS CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) PART 178--INDIRECT FOOD ADDITIVES: ADJUVANTS, PRODUCTION AIDS, AND SANITIZERS--Table of Contents Subpart D--Certain Adjuvants and Production Aids Sec. 178.3730 Piperonyl butoxide and pyrethrins as components of bags. Piperonyl butoxide in combination with pyrethrins may be safely used for insect control on bags that are intended for use in contact with dried feed in compliance with Secs. 561.310 and 561.340 of this chapter, or that are intended for use in contact with dried food in compliance with Secs. 193.60 and 193.390 of this chapter.