[Code of Federal Regulations] [Title 40, Volume 24] [Revised as of January 1, 2002] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR355.10] [Page 440] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 355--EMERGENCY PLANNING AND NOTIFICATION--Table of Contents Sec. 355.10 Purpose. This regulation establishes the list of extremely hazardous substances, threshold planning quantities, and facility notification responsibilities necessary for the development and implementation of State and local emergency response plans.