Registration certificate validity
The BDA registration certificate (удостоверение за регистрация/промяна) is issued valid until a change in the device or other changes in the declared data occur — no fixed expiry date and no periodic renewal.
- National BDA registration under ЗМИ Art. 27/28.
Changes trigger a change application under ЗМИ Art. 27(3)/28(7) with a tariff fee.

