Here is a rule that exists on paper but not at the airport: Vietnam's border health declaration. The Ministry of Health confirmed on June 30 that Decree 165/2026/ND-CP — which many read as making the form mandatory from July 1, 2026 — is a contingency framework. Authorities will activate it only when infectious diseases circulating elsewhere realistically threaten to reach Vietnam through cross-border travel.
Canadian visitors therefore arrive with the familiar paperwork: an eVisa, plus the Vietnam Arrival Card at the airports where that separate immigration formality runs. No health form comes with them for now — and the ministry pointedly warns against an unofficial declaration website in circulation — it is not the official channel and should not receive your data.
If activation ever comes, the bilingual declaration can be filed electronically or on paper within seven days of crossing the border in either direction, on an official platform to be announced at the time.