This Rules applies to Class I, Class II, and Class III explosion-proof electrical products. The product categories include: explosion-proof motors; explosion-proof electric pumps; explosion-proof power distribution device products; explosion-proof switch, control and protection products; explosion-proof starter products; explosion-proof transformer products; explosion-proof electric actuator and solenoid valve products; explosion-proof plug-in devices; explosion-proof monitoring products; explosion-proof communication and signal devices; explosion-proof air conditioning and ventilation equipment; explosion-proof electric heating products; explosion-proof accessories and Ex components; explosion-proof instrument and meter products; explosion-proof sensors; safety barrier products; explosion-proof instrument box products.

This Rules applies to automobile brake lining. Due to the changes in the law, regulations or related product standards, technology, industry policies and other causes which may change the applicable scope, the announcement released by CNCA shall be final and conclusive.

This Rules is established based on the safety risk and certification risk of automobile products; stipulates the basic principles and requirements for compulsory certification of all vehicles within its scope of application. Its purpose is to ensure that certified vehicles continue to comply with laws, regulations, and standards.

This standard is established based on the safety risk and certification risk of motor vehicle exterior lighting and light signal devices. It stipulates the basic principles and requirements for the implementation of mandatory product certification for motor vehicles; exterior lighting and light signal devices.

This Rules is established based on the safety risk and certification risk of explosion-proof electrical products. It stipulates the basic principles and requirements for the implementation of China Compulsory Certification for explosion-proof electrical products.

This Rules is applicable to motorcycle products on Chinese highways and urban roads. Due to the adjustment of the scope of application caused by changes in laws, regulations, or relevant product standards, technical and industrial policies, etc., the announcements released by CNCA shall be final and conclusive.

This Rules is established based on the safety risk and certification risk of motor vehicles - devices for indirect vision. It stipulates the basic principles and requirements for the implementation of China Compulsory Certification for motor vehicles - devices for indirect vision.