[Code of Federal Regulations]
[Title 49, Volume 3]
[Revised as of October 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 49CFR193.2181]

[Page 131]
 
                        TITLE 49--TRANSPORTATION
 
 CHAPTER I--RESEARCH AND SPECIAL PROGRAMS ADMINISTRATION, DEPARTMENT OF 
                       TRANSPORTATION (CONTINUED)
 
PART 193_LIQUEFIED NATURAL GAS FACILITIES: FEDERAL SAFETY STANDARDS--
Table of Contents
 
                            Subpart C_Design
 
Sec. 193.2181  Impoundment capacity: LNG storage tanks.

    Each impounding system serving an LNG storage tank must have a 
minimum volumetric liquid impoundment capacity of:
    (a) 110 percent of the LNG tank's maximum liquid capacity for an 
impoundment serving a single tank;
    (b) 100 percent of all tanks or 110 percent of the largest tank's 
maximum liquid capacity, whichever is greater, for the impoundment 
serving more than one tank; or
    (c) If the dike is designed to account for a surge in the event of 
catastrophic failure, then the impoundment capacity may be reduced to 
100 percent in lieu of 110 percent.

[Amdt. 193-17, 65 FR 10960, Mar. 1, 2000]