The Cambodian tourist visa is usually valid for a single entry only from date of issue for a stay of up to 30 days. Once in Cambodia you can apply to have your stay extended by up to another 30 days if needed.
The visa is valid for entry for three months from the date of issue. If your trip requires two entries to Cambodia, you must obtain the second entry upon arrival at a border entry point or airport.
Your application will be hand carried to the Embassy of Cambodia. The visa processing time is usually not less than 10 business days. Rush service is available for a Cambodian tourist visa applications.