Ten websites that regularly report on Singapore news will be required to be individually licensed from 1 June.
"This move puts them on the same regulatory framework with traditional news platforms which are already individually licensed," Singapore's Media Development Authority said in a statement.
These websites include Yahoo! Singapore, seven of Singapore Press Holdings' websites and two of Mediacorp's websites.
This new licensing framework requires online news sites to be individually licensed if they have over 50,000 unique visitors from Singapore each month over a period of two months, and if they report an average of at least one article per week on Singapore's news and current affairs over the same period.
Under the new rules, licensed sites are expected to remove content found to be in breach of standards within 24 hours with any directives from the MDA. Prohibited content include those that undermines racial or religious harmony. These sites will also be required to put up a performance bond of S$50,000 (US$39,400).
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