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phase-in

[feyz-in]

noun

  1. an act or instance of phasing in; gradual introduction or implementation.



phase in

verb

  1. (tr, adverb) to introduce in a gradual or cautious manner

    the legislation will be phased in over two years

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word History and Origins

Origin of phase-in1

Noun use of verb phrase phase in
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Idioms and Phrases

Introduce one stage at a time. For example, New technology must be phased in or the office will be overwhelmed. The antonym is phase out, meaning “to bring or come to an end, one stage at a time,” as in The department is phasing out all the older computers. [Mid-1900s]
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Example Sentences

Examples have not been reviewed.

Although the original iteration of the rules called for an eventual ban on the sale of new gas-powered appliances, the final amended rules call for a slower phase-in of the clean technology that still allows consumers to purchase natural gas units if they wish.

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Per Reuters, Big Pharma has lobbied Trump for “phase-in tariffs on imported pharmaceutical products in hopes of reducing the sting from the charges and to allow time to shift manufacturing.”

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That three-year phase-in is to apply only to those who need to retrofit their property, not to new construction.

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In 2021, the local air district and Air Resources Board agreed to a gradual phase-in of the law, starting with large farm operations, with the goal of a near-complete burn ban by Jan. 1, 2025.

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But when Seattle passed its $15-an-hour minimum wage in 2013, it gave small businesses a seven-year phase-in period to meet the goal and did so by factoring in total compensation.

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