Here is a list of potential restrictions and regulations on private ownership of slot machines in the United States on a state by state basis. Note that these regulations are subject to change without notice and are not fully guaranteed to be completely accurate.

State
Age of Machine
Legal Status

Alabama
Any Class II
LEGAL

Alaska
Any machine
LEGAL

Arizona
Any machine
LEGAL

Arkansas
Any machine
LEGAL

California
25 [...]

Measurements and time limits discussed in this section often vary among tournaments and organizations; international and NBA rules are used in this section.
The object of the game is to outscore one’s opponents by throwing the ball through the opponents’ basket from above while preventing the opponents from doing so on their [...]

The Dutch justice ministry introduced new regulations that will held criminally liable the banks and credit card companies that will facilitate online gambling on foreign sites for the Dutch citizens.
In accordance with Dutch News, in some months it will be published a list with the banned web sites (this decision [...]