For the holders of digital signature certificates, issued by accredited certificate authorities (CAs) from all countries of the European Union, Register.BG Ltd. starts accepting documents, signed with digital signature certificates in accordance with Regulation (EU) No 910/2014.

Currently, in addition to the certificates issued by the CAs from the Republic of Bulgaria, in the registration system of Register.BG are experimentally on-line accepted documents, signed with the certificates of the following CAs:

Asseco Data Systems S.A., Poland (https://www.assecods.pl/en/);
MICROSEC Ltd., Hungary (https://e-szigno.hu/en/);
eIdentity, Czech Republic (https://www.eidentity.cz/);
First Certification Authority (První certifikační autorita, a.s.), Czech Republic (https://www.ica.cz/english);
National Registers Authority (Národní certifikační autorita), Czech Republic (https://www.narodni-ca.cz/);
The Czech Post (Česká pošta, s.p.), Czech Republic (https://www.ceskaposta.cz/en/index);
Telecom Italia Trust Technologies S.r.l., Italy (https://www.trusttechnologies.it/);
InfoCert S.p.A., Italy (https://infocert.digital/);
DigiSign S.A., Romania (https://digisign.ro/);
Deutsche Telekom AG, Germany (https://www.telesec.de/en/).

The holders of certificates, issued by other CAs, can send their signed applications (for domain name registration and/or for change) by e-mail.