How to deal with continuing actions happened before new law coming into effect and legal relations formed by old law is the transitional problems faced always by legislators.

新法施行时对以前发生但尚在持续的事实或法律关系如何处理，是立法者始终面对的过渡问题，解决不当会严重影响法的实效和权威。

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Neither Contracting Party shall take unilateral action to prevent the coming into effect or continuation of a tariff charged or proposed to be charged by an airline of the other Contracting Party.

缔约任何一方不得采取单方面行动妨碍缔约另一方空运企业的某项收取或建议收取的运价生效或继续有效。

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Stage 2 and Stage 3 guidelines are set to take effect in 2013 and 2015, respectively, with the final rules coming out about a year before they go into effect.

第二阶段和第三阶段准则分别定于2013年和2015年生效，而最终规定大约会在生效前一年出台。

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But he said the welfare-to-work programme and a plan for a Universal Benefit payments, due to start coming into effect in 2013, would succeed in getting more people into employment.

BBC: Tory conference: We are party of poor - Duncan Smith

The vehicle ban coming into effect Friday applies to cars bearing temporary black license plates.

NPR: Alarm Grows As Iraqi Forces Fail To Stem Violence

Earlier this month the bank reversed its decision to delay paying staff bonuses in the UK to take advantage of a reduction in tax rates coming into effect in April.

BBC: Business