The phrase "act that allowed the" is correct and usable in written English.
It can be used when referring to a specific piece of legislation or action that granted permission or authority for something to occur.
Example: "The act that allowed the establishment of the new park was passed unanimously by the city council."
Alternatives: "legislation that permitted the" or "measure that enabled the".
Garrett Anderson's campaigning contributed to the 1876 "Enabling Act" that allowed the licensing of both male and female doctors.
The previous parliamentary vote, in 2005, was boycotted by many Sunni Arabs, an act that allowed the insurgency to fester and fueled subsequent sectarian bloodshed.
After 9/11, Congress enacted a provision of the USA Patriot Act that allowed the detention of people suspected of terrorism — but it applied only to noncitizens and then only for seven days.
In 2006 and again in 2010, the Library of Congress approved an exemption to the act that allowed the circumvention of technology that confined wireless handsets to different networks.
The Assembly routinely waited for the latest market data so it could adjust its revenue estimates upward, an act that allowed the Democratic majority to justify more liberal spending.
That May, the national-security court issued its first order to the telephone companies to log metadata from phone calls, citing a provision in the Patriot Act that allowed the government to obtain business records deemed to be "relevant" to a counterterrorism investigation.
It turns out that there was a 2004 amendment to the National Monuments Act that allows the minister for the environment to demolish a national monument if he chooses.
Yesterday, the Senate voted to overturn a 2006 provision in the Patriot Act that allows the attorney general to appoint indefinite interim United States attorneys.
Lieut Col Kumar Lama, 49, was charged under a rarely used clause of the 1988 Criminal Justice Act that allows the prosecution in the UK of alleged foreign war criminals.
They are seeking to persuade the Fish and Wildlife Service to shrink the designation significantly, under the provision of the Endangered Species Act that allows the government to apply cost-benefit tests.
The surveillance court has ruled that the domestic call log program is legally authorized by a provision of the Patriot Act that allows the government to obtain business records deemed "relevant" to an investigation.
