This document contains corrections to final regulations (TD 9398) that were published in the Federal Register on Monday, May 19, 2008 (73 FR 28699) providing rules for testing whether the economic effect of an allocation is substantial within the meaning of section 704(b) where partners are look-through entities or members of a consolidated group. The final regulations clarify the application of section 704(b) to partnerships the interests of which are owned by look-through entities and members of consolidated groups and, through an example, reiterate the effect of other provisions of the Internal Revenue Code on partnership allocations.