Many shops in China were ordered to shut down as a new law against ivory trade came into effect on January 1st, 2018.

2018年1月1日，一项针对象牙贸易的新法律生效，中国许多商店被勒令关闭。

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Factories that gave out harmful gases were all shut down after the policy came into effect.

在政策生效之后，所有排放有害气体的工厂都关闭了。

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Sunk cost came into effect.

沉没成本产生的效应。

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As the groundbreaking Right to Education law came into effect Thursday, Prime Minister Manmohan Singh made a rare address to the nation to express his government's commitment to ensuring education for all children.

VOA: standard.2010.04.01

The ban on vehicles passing under the gateway came into effect in March 2012.

BBC: Canterbury Westgate Towers

The smoking ban in all Northern Ireland government departments came into effect on 1 January.

BBC: NEWS | UK | Northern Ireland | Doctors call for NI smoking ban

Europe's 1994 Units of Measurements Regulations came into effect on 1 January last year.

BBC: Grocer fights metric laws