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Effective Dates of Acts

When Statutes Shall Take Effect

No law passed by the general court shall take effect earlier than ninety days after it has become a law, excepting laws declared to be emergency laws and laws which may not be made the subject of a referendum petition, as herein provided. Constitution Amendment Article 48, Referendum, Part 1.
 
Emergency Measures
 
In general, emergency measures take effect on the date of approval. For detailed requirements and requirements see Constitution Amendment Article 48, Referendum, Part 2.
 
Referendum Petitions
 
No law that relates to religion, religious practices or religious institutions; or to the appointment, qualification, tenure, removal or compensation of judges; or to the powers, creation or abolition of courts; or the operation of which is restricted to a particular town, city or other political division or to particular districts or localities of the commonwealth; or that appropriates money for the current or ordinary expenses of the commonwealth or for any of its departments, boards, commissions or institutions shall be the subject of a referendum petition. Constitution Amendment Article 48, Referendum, Part 3, § 2.
 
Effective Date of Statutes
 
A statute enacted by the general court which may be made the subject of a referendum petition and which is declared therein to be an emergency law, unless otherwise expressly provided therein, shall take effect as soon as it has the force of a law conformably to the constitution. A statute so enacted which may not be made the subject of such a petition and for which a different time of taking effect is not therein expressly provided shall take effect as soon as it has the force of a law as aforesaid if it is declared therein to be an emergency law, otherwise on the thirtieth day next after the earliest day on which it has the force of a law as aforesaid; provided, that a statute so enacted which may not be made the subject of such a petition and which is to take effect upon its acceptance by a municipal or other corporation or by any board or officer thereof unless otherwise expressly provided therein, shall, for the purpose of such acceptance only, take effect as soon as it has the force of a law as aforesaid. M.G.L.A. c. 4, § 1.

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