effective date

American  

[i-fek-tiv dayt, ee-fek-tiv] / ɪˈfɛk tɪv ˈdeɪt, iˈfɛk tɪv /

noun

1. the date at which a law, treaty, or regulation comes into effect.

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Example Sentences

See Examples For:

effective date

But on Monday, a federal district court judge in Massachusetts postponed the effective date on the grounds that—and I am paraphrasing here—the rule is mind-bendingly stupid and would create a needless, self-inflicted economic catastrophe.

From Slate ● Sep. 17, 2026

The January 2027 effective date of Novo Nordisk’s list-price cuts will coincide with the implementation of new, lower prices for the same drugs in the federal Medicare health-insurance program for the elderly.

From The Wall Street Journal ● Feb. 24, 2026

But administration officials told the company in December of a new, later effective date for the policy, leading to fewer gains from the credits than anticipated.

From BBC ● Feb. 10, 2026

Edison agreed to pay the settlement within 60 days of the effective date of the agreement, which was May 14, without admitting wrongdoing or fault.

From Los Angeles Times ● May 23, 2025

The renewal copyright vests in the name of the renewal claimant on the effective date of the renewal registration.

From Supplementary Copyright Statutes, US Copy. Office by Library of Congress. Copyright Office

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