[Code of Federal Regulations]

[Title 24, Volume 1]

[Revised as of April 1, 2006]

From the U.S. Government Printing Office via GPO Access

[CITE: 24CFR51.203]



[Page 388]

 

                 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.  51.203  Safety standards.



    The following standards shall be used in determining the acceptable 

separation distance of a proposed HUD-assisted project from a hazard:

    (a) Thermal Radiation Safety Standard. Projects shall be located so 

that:

    (1) The allowable thermal radiation flux level at the building shall 

not exceed 10,000 BTU/sq. ft. per hr.;

    (2) The allowable thermal radiation flux level for outdoor, 

unprotected facilities or areas of congregation shall not exceed 450 

BTU/sq. ft. per hour.

    (b) Blast Overpressure Safety Standard. Projects shall be located so 

that the maximum allowable blast overpressure at both buildings and 

outdoor, unprotected facilities or areas shall not exceed 0.5 psi.

    (c) If a hazardous substance constitutes both a thermal radiation 

and blast overpressure hazard, the ASD for each hazard shall be 

calculated, and the larger of the two ASDs shall be used to determine 

compliance with this subpart.

    (d) Background information on the standards and the logarithmic 

thermal radiation and blast overpressure charts that provide assistance 

in determining acceptable separation distances are contained in appendix 

II to this subpart C.



[49 FR 5103, Feb. 10, 1984, as amended at 61 FR 13334, Mar. 26, 1996]