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Effective Date

Section 02: Regulatory Vocabulary

Definition

The date on which a regulation or regulatory amendment becomes legally enforceable. In the US, the effective date is specified in the final rule published in the Federal Register and is typically at least 30 days after publication, unless the rule involves a good-cause exception. The effective date determines when the new or amended requirements must be met by affected persons, unless a separate compliance date is specified.

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Primary Sources

5 U.S.C. § 553(d), Publication and Effective DateFAA

The APA requirement for not less than 30 days between publication and effective date.

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