| Nomenclature | Title |
| ATSC A/52 | Digital Audio Standard |
| ATSC A/53 | Digital Broadcasting Standard |
| ATSC A/55 | Program Guide for Digital Television (withdrawn by ATSC on September 8 2006; click on link for discussion and more information) |
| ATSC A/56 | deprecated |
| ATSC A/57 | Program Informaton Protocol |
| ATSC A/65 | Program and System Informaton Protocol (PSIP) |
| ATSC A/68 | Program and System Informaton Protocol (PSIP) for Korea |
| ATSC A/70 | Conditional Access |
| ATSC A/76 | Program Metadata Communications Protocol |
| ATSC A/81 | Direct Broadcast Standard |
| ATSC A/90 | Data Broadcast Service |
| ATSC A/97 | Software Download Service |
| ATSC A/110 | Synchronization Standard for Distributed Transmission |