One clean page. That is what a US citizen needs for Cambodia — a single blank visa page for the entry stamp. Here is how to count yours correctly, why a half-used page does not count, and what to do if your book is full.

At least one full blank visa page. Cambodian Immigration presses a physical entry stamp into your US passport when you arrive, and that stamp needs a clean page in the "Visas" section to land on. One genuinely empty page is enough for a standard single-entry eVisa trip. A page that already carries a stamp from another country does not count, and the endorsement pages at the very back of the book do not count either. Pair this with the 6-month validity rule — your passport must also have at least 6 months left from your date of entry — and the airline checks both at your US departure gate before you ever reach Cambodia.



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A popular pairing for Americans — but all 7 land borders into Cambodia are closed, so you fly in and need a clean page for the stamp.
Check Cambodia entry rules →The classic Indochina loop. More stamps means more pages used, so count your buffer before you go.
Confirm your documents →The quieter third stop on the regional route — another stamp on another page.
Check passport requirements →Your destination — one clean page, 6 months validity, then the eVisa.
Start your eVisa →