Congress does.
It is not written in the constitution exactly how to deal with it.
Yes
The issuing authority on a passport is the government agency responsible for issuing and regulating passports, typically the country's foreign affairs or immigration department.
The part of the brain responsible for regulating sleep is the hypothalamus.
The Department of Immigration and Citizenship is responsible for managing Australia's immigration levels.
You are!
The federal agency responsible for regulating the airline industry is the Federal Aviation Administration (FAA)
no
an immigration officer is responsible for ensuring that immigratioin legislation is enforced.......
FDA
The Iowa Department of Natural Resources is responsible for regulating the state boating laws in Iowa.
regulating immigration
The Florida Fish and Wildlife Conservation Commission (FWC) is responsible for regulating the state boating laws.