Internet addiction is commonly referred to as "electronic opium"[91] or "electronic heroin" in China.[92] The government of the People's Republic of China is the first country to formally classify Internet addiction a clinical disorder by recognizing Clinical Diagnostic Criteria for Internet Addiction in 2008.[93][94] The government has enacted several policies to regulate adolescents' Internet use, including limiting daily gaming time to 3 hours and requiring users' identification in online video games.[95]