The new rule has been implemented to "prevent vulgar content, base art forms, exaggerated violence and sexual content in Internet video having a negative effect on society," China's State Administration of Press, Publication, Radio, Film and Television (SARFT) said on its website.

The rule is "aimed at online dramas, micro-films and other online audio-visual programmes" the statement on the website says. 
Online video sites are often a lodestone for comment and critique on social issues in China, with users uploading videos documenting corruption, injustice and abuse carried out by government officials and authorities.
Online video sites are extremely popular in China, with 428 million users. Those allowing user uploads include sites operated by Youku Tudou Inc and Renren Inc.
Last year, the Communist Party began a campaign to control online discourse, threatening legal action against people whose perceived rumours on microblogs such as Sina Weibo are reposted more than 500 times or seen by more than 5,000 people.
China has attempted to implement similar real-name registration rules, including when buying SIM cards for mobile phones and signing up for Tencent's WeChat mobile messaging app and microblogs.
However, these have proven difficult to implement.
Similar online restrictions are already in place in Iran, where you need to show your ID to be allowed any near an internet café. People who want to use a public computer are also asked to fill out a form and give their address and phone number.
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