This document contains temporary regulations relating to the requirements for filing corporate income tax returns and returns of organizations required to file returns under section 6033 on magnetic media pursuant to section 6011(e) of the Internal Revenue Code. The term magnetic media includes any magnetic media permitted under applicable regulations, revenue procedures, or publications, including electronic filing. The text of the temporary regulations also serves as the text of the proposed regulations set forth in the notice of proposed rulemaking on this subject in the Proposed Rules section in this issue of the Federal Register.