The provisions of paragraph (e)(1) of § 1.167(a)-11 apply in determining whether property is first placed in service before January 1, 1971. See subparagraph (4)(ii) of this paragraph for special rules for the exclusion of property from the definition of qualified property.
See subdivision (vii) of this subparagraph for determination of reasonable allowance if depreciation exceeds the amount permitted by this subdivision. See paragraph (b) of this section for rules regarding the determination of "class life". For rules for regrouping depreciation accounts to conform to the asset guideline class, see subdivision (iv) of this subparagraph.
For purposes of this subparagraph, a taxpayer's depreciation accounts conform to the asset guideline class if each depreciation account includes only assets of the same asset guideline class.
See paragraph (e)(3)(iii) of this section for requirement that the election for the taxable year specify the class life for each asset guideline class. Generally, the applicable asset guideline class and asset guideline period for qualified property to which the taxpayer has elected to apply this section will not be changed for the taxable year of election to reflect any supplement or revision thereof after the taxable year. However, if expressly provided in such a supplement or revision, the taxpayer may, at his option in the manner specified therein, apply the revised or supplemented asset guideline classes or periods to such property for such taxable year and succeeding taxable years. The principles of this subparagraph may be illustrated by the following example:
Example.
A class life justified by application of section 3.03(a) , Part II, of Revenue Procedure 62-21 shall not be shorter than can be justified under the Adjustment Table for Class Lives in Part III of such Revenue Procedure. For purposes of this subparagraph and paragraph (f)(1)(iii) of this section, the reserve ratio test is met only if the taxpayer's reserve ratio does not exceed the upper limit of the appropriate reserve ratio range or in the alternative during the transitional period there provided does not exceed the appropriate "transitional upper limit" in section 3, Part II, of Revenue Procedure 65-13. References to Revenue Procedure 62-21 include all morifications, amendments, and supplements thereto as of January 1, 1971. The guideline form of the reserve ratio test, as described in Revenue Procedure 65-13, may be applied for purposes of this subparagraph in a manner consistent with the rules contained in section 7, Part II, of Revenue Procedure 65-13 and sections 3.02 , 3.03 , and 3.05 , Part II, of Revenue Procedure 62-21. The principles of this subparagraph may be illustrated by the following examples:
Example. Taxpayer A had adopted Revenue Procedure 62-21 prior to January 12, 1971, for taxable years prior to 1971. Taxpayer A had not taken into account any salvage value for account No. 1 which is one of four depreciation accounts A has in the class. The reserve ratio test has been met for all years prior to 1971 and in accordance with Revenue Procedure 62-21 no adjustments in depreciable lives or salvage values were made. At the end of A's taxable year 1970, the unadjusted basis of account No. 1 was $10,000 and the reserve for depreciation was $9,800. Pursuant to this paragraph, A establishes a salvage value of $400 for account No. 1 (determined at or as of the time of acquisition). This salvage value is determined to be correct. No depreciation is allowable for account No. 1 in 1971. No depreciation is disallowed for any taxable year prior to 1971, solely by reason of establishing salvage value under this paragraph.
If an election is deemed to be made under this subdivision (ii), the taxpayer will be deemed to have consented to apply all the provisions of this section.
If not treated under (b) or (c) of this subdivision as having done so for the last taxable year ending before January 1, 1971, and if the taxpayer files his first income tax return for such taxable year after January 11, 1971, the taxpayer will be treated as having adopted Revenue Procedure 62-21 prior to January 12, 1971, for a guideline class for such taxable year if he expressly so indicated on that return, or is treated under this subparagraph as having adopted Revenue Procedure 62-21 prior to January 12, 1971, for that guideline class for the immediately preceding taxable year.
26 C.F.R. §1.167(a)-12
Sec. 167(m), 85 Stat. 508 (26 U.S.C. 167 )