Vehicle inspection station (annual technical inspection / GTP). Permit No. 1775. Region/municipality: Smolyan / Madan. Categories: M1 M1G M2 M2G M3 M3G N1 N1G N2 N2G N3 N3G O1 O2 O3 O4. Source: Official RTA all-valid permits #1775 (as of 2026-09-30).