| Country | Company name |
|---|
| AUSTRIA |
ON Austrian Standards Institute |
| OVE Osterreichischer Verband fur Elektrotechnik |
| BELGIUM |
NBN Bureau for Normalisation |
| BOSNIA & HERZEGOVINA |
Institute for standardization of Bosnia & Herzegovina (BAS) |
| BULGARIA |
CRC Communications Regulation Commission |
| CROATIA |
HZN Croatian Standards Institute |
| CYPRUS |
CYS Cyprus Organisation for Standardisation |
| CZECH REPUBLIC |
ÚNMZ Czech Standards Institute |
| DENMARK |
Danish Standards |
| ESTONIA |
Estonian Technical Surveillance Authority |
| FINLAND |
FICORA Finnish Communications Regulatory Authority |
| FRANCE |
AFNOR Association Française de Normalisation |
| FYROM |
ISRM Standardization Institute of the Republic of Macedonia |
| GEORGIA |
GNCC Georgian National Communications Commission |
| GERMANY |
DKE Deutsche Elektrotechnische Kommission in DIN und VDE |
| GREECE |
ELOT Hellenic organization for Standardization |
| HUNGARY |
MSZT Hungarian Standards Institution |
| ICELAND |
IST Icelandic Standards |
| IRELAND |
NSAI National Standards Authority of Ireland |
| ITALY |
CEI Comitato Elettrotecnico Italiano |
| CONCIT Comitato Nazional di Coordinamento per l'Informatica e le Telecomunicazioni |
| LATVIA |
Latvian Standards Ltd |
| LITHUANIA |
Lithuanian Standards Board |
| LUXEMBOURG |
ILNAS Organisme Luxembourgeois de Normalisation |
| MALTA |
MCCAA Malta Competition and Consumer Affairs Authority |
| THE NETHERLANDS |
NEN Nederland Elektrotechnisch Comité |
| NORWAY |
Norwegian Post and Telecommunications Authority |
| POLAND |
PKN Polish Committee for Standardization |
| PORTUGAL |
IPQ Instituto portugues da Qualidade |
| ROMANIA |
ASRO Romanian Standards Association |
| RUSSIAN FEDERATION |
State Committee for Communications and Informatization of Russian Federation |
| SERBIA |
ISS Institute for Standardization of Serbia |
| SLOVAKIA |
SUTN Slovak standards Institute |
| SLOVENIA |
SIST Slovenian Institute for Standardization |
| SPAIN |
AENOR Spanish Association for Standardisation and Certification |
| SWEDEN |
ITS Information Technology Standardization |
| SWITZERLAND |
asut Association Suisse des Télécommunications |
| TURKEY |
Telecommunications Authority |
| UNITED KINGDOM |
BSI British Standards Institution |
| UKRAINE |
URTRI Ukrainian Radio and Television Research Institute |
