Notwithstanding any other provision of law, no regulation and no modification of any regulation, promulgated by the Secretary of Health and Human Services, after , shall become effective prior to the end of the eighteen-month period which begins with the first day of the first calendar month which begins after the date on which such regulation or modification of a regulation is published in the Federal Register, if and insofar as such regulation or modification of a regulation pertains, directly or indirectly, to the frequency or due dates for payments and reports required under section 418(e) of this title.1January 2, 19761976-01-02
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