Standards and Recommendations
The Brazilian Digital Terrestrial Television Forum has published with ABNT the standard series for the Brazilian DTV System. These documents are available online for free.
The ABNT Standards related with Ginga belong to the "Data Coding and Transmission Specification for Digital Broadcasting" group.
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)