[Code of Federal Regulations] [Title 24, Volume 1] [Revised as of April 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 24CFR51.207] [Page 385] TITLE 24--HOUSING AND URBAN DEVELOPMENT PART 51_ENVIRONMENTAL CRITERIA AND STANDARDS--Table of Contents Subpart C_Siting of HUD-Assisted Projects Near Hazardous Operations Handling Conventional Fuels or Chemicals of an Explosive or Flammable Nature Sec. 51.207 Special circumstances. The Secretary or the Secretary's designee may, on a case-by-case basis, when circumstances warrant, require the application of this subpart C with respect to a substance not listed in appendix I to this subpart C that would create thermal or overpressure effect in excess of that listed in Sec. 51.203. [61 FR 13334, Mar. 26, 1996]