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

Under state law, dealers in California may continue to use up supplies of paraquat for up to two years following the effective date of their cancellation.

From Los Angeles Times ● Aug. 11, 2026

The company also plans to pay professional fees of more than $245 million in full, while as much as $223 million in administrative expenses would remain unpaid as of the bankruptcy plan’s effective date.

From The Wall Street Journal ● May 14, 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

Insufficient fees could delay the effective date of notice.

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