The phrase "act permitting" is correct and usable in written English.
It is typically used to indicate that something is allowed or possible if certain conditions are met, often in legal or formal contexts.
Example: "We will proceed with the project, act permitting, and ensure all regulations are followed."
Alternatives: "if permitted by law" or "if allowed by the act".
Then the Federalists wrote an Alien Enemies Act, permitting the arrest or deportation of any immigrant from a country that attacked or merely threatened the United States.
Franklin D. Roosevelt signed the Cullen-Harrison Act, which amended the Volstead Act, permitting the manufacturing and sale of low-alcohol beer and wines (up to 3.2 percent alcohol by volume).
In 1841, President Tyler signed the Preemption Act, permitting squatters living on federally owned land to purchase up to 160 acres at a price not less than $1.25 an acre.
In March 1933, just weeks after he had been inaugurated, President Franklin D Roosevelt signed an amendment to the Volstead Act permitting the sale and consumption of beer with no more than 3.2% alcohol content.
Since 1980, when Congress passed the Bayh-Dole Act permitting patents on discoveries made with public funds, universities and faculty members have been raking in royalties from technologies developed with the help of government grants.
A section of the Single European Act permitting free trade to be overruled for environmental reasons was used in October 1992 when environment ministers of the 12 member countries agreed to permit national governments to forbid the importation of toxic wastes.
"No United Nations resolution or Congressional act permits the president to circumvent the Constitution".
Title 3 of the 1996 Telecommunications Act permits media cross-ownership.
The 2009 American Reinvestment and Recovery Act permitted states to relax some of these requirements.
Mr. Boies said the act permits copying of files for personal, noncommercial use.
The Freedom Act permits the amicus to argue before the court in novel circumstances.
