Section 70.303 - Rules and regulations(a)Issuance. The Administrator, with the approval of the Secretary, shall prescribe all needful rules and regulations for the enforcement of provisions of 26 U.S.C. enforced and administered by the Bureau (except where this authority is expressly given by 26 U.S.C. to any other person other than an officer or employee of the Treasury Department), including all rules and regulations as may be necessary by reason of any alteration of law in relation to taxes within the Administrator's jurisdiction.(b)Retroactivity. The Administrator, with the approval of the Secretary, may prescribe the extent, if any, to which any regulation or Treasury decision relating to the laws within the Administrator's jurisdiction shall be applied without retroactive effect. The Administrator may prescribe the extent, if any, to which any ruling relating to the laws within the Administrator's jurisdiction, issued by or pursuant to authorization from the Administrator, shall be applied without retroactive effect.(c)Preparation and distribution of regulations, forms, stamps, and other matters. The Administrator, under the direction of the Secretary, shall prepare and distribute all the instructions, regulations, directions, forms, blanks, stamps, and other matters pertaining to the assessment and collection of taxes within the Administrator's jurisdiction.