Cal. Rev. & Tax. Code § 24354.1
(a) Except as provided in subdivisions (b) and (c) of this section, in the case of property of the type defined in Section 1250(c) of the Internal Revenue Code, subdivision (b) of Section 24349 shall not apply and the term “reasonable allowance” as used in subdivision (a) of Section 24349 shall include an allowance computed in accordance with regulations prescribed by the Franchise Tax Board, under any of the following methods:
(3) Any other consistent method productive of an annual allowance which, when added to all allowances for the period commencing with the taxpayer’s use of the property and including the taxable year, does not, during the first two-thirds of the useful life of the property, exceed the total of such allowances which would have been used had such allowances been computed under the method described in paragraph (2).
Nothing in this subdivision shall be construed to limit or reduce an allowance otherwise allowable under subdivision (a) of Section 24349 except where allowable solely by reason of paragraph (2), (3), or (4) of subdivision (b) of Section 24349.
(b)
(1) Subdivision (a) of this section shall not apply, and subdivision (b) of Section 24349 shall apply in any taxable year, to a building or structure—
(c) Subdivision (a) of this section shall not apply, and subdivision (b) of Section 24349 shall apply, in the case of property—
(d) Except as provided in subdivision (e), in the case of property of the type defined in Section 1250(c) of the Internal Revenue Code acquired after December 31, 1970, the original use of which does not commence with the taxpayer, the allowance for depreciation under Sections 24349 to 24354.2, inclusive, shall be limited to an amount computed under—
(2) Any other method determined by the Franchise Tax Board to result in a reasonable allowance under subdivision (a) of Section 24349, not including—
(e) In the case of property of the type defined in Section 1250(c) of the Internal Revenue Code which is residential rental property (as defined in paragraph (2) of subdivision (b)) acquired after December 31, 1970, having a useful life of 20 years or more, the original use of which does not commence with the taxpayer, the allowance for depreciation under Sections 24349 to 24354.2, inclusive, shall be limited to an amount computed under—
(3) Any other method determined by the Franchise Tax Board to result in a reasonable allowance under subdivision (a) of Section 24349, not including—
(f)
(g) This section shall not apply to public utility property which means property used predominantly in the trade or business of the furnishing or sale of—
(4) Transportation of gas or steam by pipeline,
if the rates for such furnishing or sale, as the case may be, have been established or approved by a state or political subdivision thereof, by any agency or instrumentality of the United States, or by a public service or public utility commission or other similar body of any state or political subdivision thereof.