Is there an approved electronic passport accepted by Thailand for US citizens?

A U.S. passport electronically is not available; travelers must carry physical passports or acceptable alternatives. While the law requires carrying a passport, many expats suggest carrying photocopies or images on mobile devices. In practice, police may accept these alternatives, but having the original passport on hand is advisable to avoid fines. Most expats share experiences of never being asked for the passport in daily situations, although legal obligations remain.