Consolidation
(7) Consolidation(i) In general. Where an exempt organization subject to unrelated business income tax under section 511 publishes two or more periodicals for the production of income, it may treat the gross income from all (but not less than all) of such periodicals and the items of deduction directly connected with such periodicals (including readership costs of such periodicals), on a consolidated basis as if such periodicals were one periodical in determining the amount of unrelated business taxable income derived from the sale of advertising in such periodical. Such treatment must, however, be followed consistently and once adopted shall be binding unless the consent of the Commissioner is obtained as provided in sections 446(e) and 1.4461(e).