China has put in place a new policy that limits online video game playing for young people to three hours a week. The new rules restrict online gaming for those under age 18 to one hour in the evening on Fridays, weekends and public holidays. The restrictions took effect on Wednesday. They were announced by China’s National Press and Publication Administration, NPPA. That agency is responsible for regulating video games. The new rules place the responsibility for carrying out the policy on the gaming industry. The limits do not include punishments for individual gamers. China is the world’s largest video gaming market. The Chinese government has worried for years about young people becoming addicted to games. Treatment centers have been set up in the country for people thought to have developed “gaming disorders.”