This draft Circular provides guidance for the implementation of Clause 17, Article 1 of Law No. 77/2025/QH15, which amends and supplements Article 39 of the Law on Economical and Efficient Use of Energy No. 50/2010/QH12. This Circular shall not apply to: a) Vehicles manufactured, assembled, or imported under the management authority of the Ministry of National Defence or the Ministry of Public Security; b) Vehicles temporarily imported for re-export; in transit, transshipment; or belonging to diplomatic and consular missions; c) Vehicles imported for on-commercial purposes; d) Vehicles imported under special regulations of the Prime Minister; đ) Used vehicles imported into Vietnam; e) Vehicles manufactured or assembled using components from vehicles that have already been energy-labelled; g) Vehicles manufactured or assembled for export. This draft Circular applies to organizations and individuals involved in the manufacture, assembly, importation, distribution, and trading of vehicles under the management authority of the Ministry of Construction, including through e-commerce platforms.