Following the release of a draft regulation on August 25, 2025, the Bureau of Standards, Metrology and Inspection (BSMI), Ministry of Economic Affairs, officially announced on December 24, 2025, that secondary lithium-ion battery packs for road vehicles would be added as a mandatory inspection item. The inspection standard is CNS 16160(2023 edition), and it is stipulated that it will be mandatory from July 1, 2027
Scope of application (enterprises need to confirm this carefully):
According to the announcement, this specification applies to:
- Category M and N electric road vehicles with a speed exceeding
25 km/h
- Secondary lithium-ion battery packs for vehicles
- Battery capacity ≤ 100 kWh
Manufacturers involved in the aforementioned vehicle and battery configurations must plan their BSMI testing and certification pathways in advance.
How MCM Can Support Your Business?
As the first partner of a Taiwan BSMI-accredited laboratory in mainland China, MCM keeps abreast of regulatory updates and provides localized testing and technical support.
MCM has successfully assisted over 800 clients worldwide in obtaining their BSMI certification on the first attempt, and has accumulated rich experience in EV battery and related product compliance filed.
MCM Reminder
From regulatory interpretation to testing and certification, MCM helps you transform complex entry requirements into a clear and actionable path. If you need to assess whether your battery meets the latest BSMI requirements, please feel free to contact MCM. We will provide you with professional and reliable compliance support.
