Capital expenditure
Capital expenditure means an expenditure for a physical or operational change to an existing facility which exceeds the product of the applicable annual asset guideline repair allowance percentage specified in the latest edition of Internal Revenue Service (IRS) Publication 534 and the existing facility's basis, as defined by section 1012 of the Internal Revenue Code. However, the total expenditure for a physical or operational change to an existing facility must not be reduced by any excluded additions as defined in IRS Publication 534, as would be done for tax purposes.
Source
40 CFR § 60.2
Scoping language
The terms used in this part are defined in the Act or in this section as follows: