Separate category.
(11) Separate category. The term separate category has the meaning set forth in section 904(d)(1), and shall also include any other category of income to which section 904(a), (b), and (c) are applied separately under any other provision of the Internal Revenue Code (e.g., sections 56(g)(4)(C)(iii)(IV), 245(a)(10), 865(h), 901(j), and 904(h)(10) (or section 904(g)(10) for taxable years beginning on or before December 31, 2006).