Home / Sofia DIM 2016 OOD Auto service Call · +359888220019 Vehicle inspection station (annual technical inspection / GTP). Permit No. 1621. Region/municipality: Sofia-grad / Sofia. Categories: AB1 AP1 L1 L3 L3e M1 M1G N1 N1G O1 O2. Source: Official RTA all-valid permits #1621 (as of 2026-09-30).