Guangdong National Language Regulations
The Guangdong National Language Regulations are a set of laws enacted in 2012 by the Government of Guangdong to promote the use of Standard Chinese in broadcast and print media at the expense of the local varieties of Chinese—namely Cantonese, Hakka and Teochew. It has been labelled as "pro-Mandarin, anti-Cantonese" legislation (廢粵推普、推普廢粵).
Source: Wikipedia — Guangdong National Language Regulations (CC BY-SA 4.0)