It seems not much info is currently available at this point, but there will be a 6-month trial period. Details are as follows:
Cambodia will trial an “e-Arrival Card” for travelers in 2024.
The Ministry of Interior will launch an electronic system called the "Cambodia e-Arrival Card" to be filled out in English before arriving at the International airports in the Kingdom of Cambodia.
The electronic form will be available either at www.arrival.gov.kh or via the Cambodia e-Arrival (CeA) app available in the App Store and Play Store on mobile phones or other electronic devices, starting from January 1st.
During the pilot phase, passengers will have the option of filling out an electronic form or filling out immigration, customs and health information paper forms.
The official implementation will start from July 1, 2024, requiring all passengers to fill out the information in the electronic form.
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