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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.


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

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

Customs made the effective date for ending them Feb. 24.

From The Wall Street Journal Mar. 6, 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

Trump also took the opportunity to push back the effective date of earlier reciprocal tariffs on nearly all U.S. imports.

From Salon Jul. 7, 2025

The latest of several laws and decrees published in this context appeared in June 1972 with an effective date of January 1, 1973.

From Area Handbook for Bulgaria by Violeta D. Baluyut

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