Cal. Code Regs. tit. 18, § 24273
(1) If a taxpayer elects or has elected under Section 23854 and 23854.1 of the Bank and Corporation Tax Law of 1954, to include in its gross income the amount of a loan from the Commodity Credit Corporation for the income year in which it is received, then--
(2) The application of paragraph (1) of this regulation may be illustrated by the following example:
EXAMPLE. Corporation A, a taxpayer who elected for its income year 1956 to include in gross income amounts received as loans from the Commodity Credit Corporation, received as loans $500 in 1956, $700 in 1957, and $900 in 1958. In 1960 all the pledged commodity was sold by the Commodity Credit Corporation for an amount $100 and $200 less than the loans with respect to the commodity pledged in 1956 and 1957, respectively, and for an amount $150 greater than the loan with the respect to the commodity pledged in 1958. Corporation A, in making its return for 1960, shall include in gross income the sum of $150 if it is received during that year, but will not be allowed a deduction for the deficiencies of $100 and $200 unless it is required to satisfy such deficiencies and does satisfy them during that year.
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** This regulation is substantially the same as Section 26 CFR 1.77-2.