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

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 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

“Consumers could see FD&C Red No. 3 as an ingredient in a food or drug product on the market past the effective date in the order if that product was manufactured before the effective date.”

From Salon ● Jan. 24, 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