shall be deemed to be final administrative orders under subsection (c) only as such requirements apply to monograph drugs. (C) Effective date period Unless withdrawn or revised by the Secretary, the regulations under title 21 of the Code of Federal Regulations that are described in subparagraph (B) shall remain in effect with respect to drugs not subject to subparagraph (A), (B), (C), or (D) of subsection (b)(1). (3) Withdrawal of regulations The Secretary shall withdraw regulations establishing final monographs and the procedures governing the over-the-counter drug review under part 330 and other relevant parts of title 21, Code of Federal Regulations (as in effect on the day before the date of enactment of this Act), or make technical changes to such regulations to ensure conformity with appropriate terminology and cross references, to the extent needed to effectuate or harmonize the provisions of this section. Notwithstanding subchapter II of chapter 5 of title 5, United States Code, any such withdrawal or technical amendments shall be made without public notice and comment and be effective upon publication through notice in the Federal Register (or upon such date as specified in such notice). (k) Guidance (1) Issuance The Secretary shall issue guidance that provides— (A) the procedures and principles for formal meetings between the Secretary and sponsors or requestors for drugs subject to this section