Standards and Recommendations
ABNT provides online visualization of Terrestrial Digital TV Standards. Standards concerning Ginga-NCL have the following identifiers: NBR15606-2, NBR15606-5 and NBR15606-7. Click here to obtain access instructions. (PDF) (english)
H.761 : Nested context language (NCL) and Ginga-NCL for IPTV services (PDF) (english)