TTerrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 3: Interworking at the Inter-System Interface (ISI) - Sub-part 9: Transport layer independent, General design (Endorsement of the English version EN 300 392-3-9 V1.4.0 (2026-03) as a German standard)

Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 3: Interworking at the Inter-System Interface (ISI) - Sub-part 12: Transport layer independent Additional Network Feature Individual Call (ANF-ISIIC) (Endorsement of the English version EN 300 392-3-12 V1.4.0 (2026-03) as a German standard)

Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 3: Interworking at the Inter-System Interface (ISI) - Sub-part 15: Transport layer independent Additional Network Feature, Mobility Management (ANF-ISIMM) (Endorsement of the English version EN 300 392-3-15 V1.5.0 (2026-04) as a German standard)

Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 12: Supplementary services stage 3 - Sub-part 16: Pre-emptive Priority Call (PPC) (Endorsement of the English version EN 300 392-12-16 V1.4.0 (2026-03) as a German standard)

Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 12: Supplementary services stage 3 - Sub-part 22: Dynamic Group Number Assignment (DGNA) (Endorsement of the English version EN 300 392-12-22 V1.7.0 (2026-03) as a German standard)

Radio Broadcasting Systems - Digital Audio Broadcasting (DAB) to mobile, portable and fixed receivers (Endorsement of the English version EN 300 401 V2.2.1 (2026-02) as a German standard)

Transmission and Multiplexing (TM) - Generic requirements of transport functionality of equipment - Part 3-1: Synchronous Transport Module N (STM-N) regenerator and multiplex section layer functions (Endorsement of the English version EN 300417-3-1 V 1.1.2 (1998-11) as German Standard) (Endorsement of the English version EN 300417-3-1 V 1.2.1 (2001-10) as German Standard)

Digital Video Broadcasting (DVB) - Specification for Service Information (SI) in DVB systems

Electromagnetic compatibility and Radio spectrum Matters (ERM) - ElectroMagnetic Compatibility (EMC) standard for Terrestrial Trunked Radio (TETRA) and ancillary equipment (Endorsement of the English version EN 300 827 V1.1.1 (1998-03) as a German standard)

Electromagnetic compatibility and Radio spectrum Matters (ERM) - ElectroMagnetic Compatibility (EMC) for radiotelephone transmitters and receivers for the maritime mobile service operating in the VHF bands (Endorsement of the English version EN 300 828 V1.1.1 (1998-03) as a German standard)