This document contains temporary regulations that provide guidance on the application of sections 162(a) and 263(a) of the Internal Revenue Code to amounts paid to acquire, produce, or improve tangible property. The temporary regulations clarify and expand the standards in the current regulations under sections 162(a) and 263(a) and provide certain bright-line tests (for example, a de minimis rule for certain acquisitions) for applying these standards. The temporary regulations also provide guidance under section 168 regarding the accounting for, and dispositions of, property subject to section 168. The temporary regulations also amend the general asset account regulations. The temporary regulations will affect all taxpayers that acquire, produce, or improve tangible property. The text of the temporary regulations also serves as the text of proposed regulations set forth in the notice of proposed rulemaking on this subject appearing elsewhere in this issue of the Federal Register.