China's legal provisions on drug driving? According to Article 67 of the Provisions on the Application and Use of Motor Vehicle Driving Licenses, the legal provisions on drug driving in China: if a motor vehicle driver has one of the following circumstances, the vehicle management office shall cancel his motor vehicle driving license: (1) he is dead; （2） Applying for cancellation; （3） The guardian applies for cancellation due to the loss of civil capacity; （4） The physical condition is not suitable for driving motor vehicles; （5） Having organic heart disease, epilepsy, Meniere's disease, vertigo, hysteria, tremor paralysis, psychosis, dementia, nervous system diseases that affect limb activities and other diseases that hinder safe driving; （6） Those who have been found driving a motor vehicle after taking or injecting drugs, are implementing community drug rehabilitation, compulsory isolation drug rehabilitation, community rehabilitation measures, or have been addicted to dependent psychotropic drugs for a long time but have not yet quit; （7） Failing to renew the motor vehicle driver's license more than one year after the expiry date of the license; （8） Those who are over 60 years old and fail to submit physical condition certificates within one year after the end of a scoring cycle; Or the person who holds a small automatic transmission passenger car for the disabled and is allowed to drive the car does not submit a physical condition certificate within one year after the end of three scoring cycles; （9） At the age of 60 or above, the motor vehicle driver's license held by him only has the type of trolley bus or tram that can be driven, or at the age of 70 or above, the motor vehicle driver's license held by him only has the type of low-speed truck, tricycle, and wheeled self-propelled mechanical vehicle that can be driven; （10） The motor vehicle driving license is revoked or the driving license is revoked according to law. Under any of the circumstances from Item 4 to Item 10 of Paragraph 1, if the motor vehicle driver's license is not withdrawn, it shall be announced that the motor vehicle driver's license is invalid. If the motor vehicle driver's license has been cancelled for less than two years under one of the circumstances in Item 7 and Item 8 of Paragraph 1, the motor vehicle driver may resume his driving qualification after passing the examination of road traffic safety laws, regulations and related knowledge. Article 22 of the Road Traffic Safety Law of the People's Republic of China stipulates that motor vehicle drivers shall abide by the provisions of road traffic safety laws and regulations, and drive safely and in a civilized manner in accordance with the operating specifications. Those who drink, take psychotropic substances or narcotic drugs under state control, or suffer from diseases that hinder the safe driving of motor vehicles, or are too tired to drive safely, shall not drive motor vehicles. No one may force, instigate or connive a driver to drive a motor vehicle in violation of road traffic safety laws and regulations and the requirements for safe driving of motor vehicles. Do you understand this explanation?