Direct answer
QCVN 31:2026/BXD sets technical requirements for new batteries used in the manufacture, assembly and import of electric motorcycles and mopeds, and where requested by the regulatory authority. It takes effect on 9 October 2026 and replaces QCVN 91:2024/BGTVT.
When this regulation should be reviewed
Review QCVN 31:2026/BXD when a manufacturer or importer needs to define the battery type, technical documentation, representative samples and applicable tests before inspection registration, testing or certification in Vietnam.
Transition arrangements
Article 2 of Circular 13/2026/TT-BXD addresses dossiers accepted before the effective date and relevant test reports. For each project, verify the acceptance date, test date and evidence scope against the official Vietnamese text.
What the customer should prepare
- Battery type, intended vehicle and use in Vietnam.
- Configuration list, drawings, specifications, materials and product markings.
- Available test reports, approvals or certificates with their scope and document versions.
- Production or import plan, production site and target timing.
Legal source and language
This English title and summary are descriptive project guidance, not an official legal translation. Legal effect, terminology, scope and technical requirements are controlled by the current official Vietnamese text.
Testing and certification impact
The review should identify evidence gaps, representative samples, applicable tests, the dossier structure and open technical issues. Testing, certification and regulatory decisions remain with the competent authority or authorized organization.
Source and review status
QCVN 31:2026/BXD was issued with Circular 13/2026/TT-BXD dated 9 April 2026. The Circular takes effect on 9 October 2026. The official Vietnamese PDF has 17 pages; this page was reviewed on 9 November 2026.