These temporary regulations modify the rules relating to the filing by certain taxpayers of a disclosure statement with their Federal tax returns under section 6011(a) and include conforming changes to the rules relating to the registration of confidential corporate tax shelters under section 6111(d). These regulations affect taxpayers participating in reportable transactions and persons responsible for registering confidential corporate tax shelters. The text of these 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 of this issue of the Federal Register.