The competent national authority in the Republic of Croatia for Annex 18 and these Instructions is:
Croatian Civil Aviation Agency (CCAA)
Ulica grada Vukovara 284
10 000 Zagreb, Croatia
Telephone: +385 1 2369 300
Facsimile: +385 1 2369 301
Email: ccaa@ccaa.hr; dg@ccaa.hr
Website www.ccaa.hr