Passport validity:
Six months.
Blank passport pages:
One page is required for entry stamp.
Tourist visa required:
Yes
Vaccinations:
None
Currency restrictions for entry: The import of local currency (riel) is prohibited. When entering cambodia, foreign currency amounts over us $10,000 must be declared.
Currency restrictions for exit:
The export of local currency (riel) is prohibited. Foreign currency can be taken out of the country up to the limit declared at customs on arrival.
Source : travel.state.gov