An inadequate utility system fuel inventory or energy supply is a matter of managerial and engineering judgment based on such factors as fuels in stock, fuels en route, transportation time, and constraints on available storage facilities. A system may be considered to have an inadequate fuel or energy supply capability when, combined with other conditions, the projected energy deficiency upon the applicant's system without emergency action by the DOE, will equal or exceed 10 percent of the applicant's then normal daily net energy for load, or will cause the applicant to be unable to meet its normal peak load requirements based upon use of all of its otherwise available resources so that it is unable to supply adequate electric service to its ultimate customers. The following conditions will be considered in determining that a system has inadequate fuel or energy supply capability:
The use of the prescribed criteria does not preclude an applicant from claiming the existence of an emergency when its stocks of fuel or water exceed the amounts and time frames specified above.
10 C.F.R. §205.375