I have several sentences for you.
The FBI agent is a federal government employee.
Enumerated powers belong only to the federal government.
The head of the federal government is the president.
He dismissed her complaints as mere folderol, believing they were insignificant and without merit.
As a noun: The Federal government is responsible for upholding the Constitution and the Bill of Rights. Or as an adjective: A government job is often a stable job.
The federal government has the right to regulate motor carriers because they are involved in interstate commerce.
The book examines the U.S. Federal Government and the the political intricacies of Washinton, DC.
The campaign was hoping to use soft money to increase votes is one example of a using soft money in a sentence. Hard money is referred to as regulated money that is tracked by the Federal government.
In US, when you pay income taxes, you support the federal government.
Only capitalize the word federal when you are referring specifically to a federal government, e.g. the Federal Government of the US or of Australia, or when the word is used in the title of a proper noun, e.g. the Federal Bureau of Investigation.
Laws in your city-state may vary from the example. CPS is run by the city-state but funded by the federal government.
federal system