- Ministry of the Sea, Transport and Infrastructure (Ministarstvo mora, prometa i infrastrukture)
- Harbormasters’ offices (Lučke kapetanije)
- Ordinance on ranks and certifications of seafarers (unofficial consolidated text, Official Gazette 130/13, 45/14, 124/15, 72/16)
- IMO – International Maritime Organization
- European Maritime Safety Agency (EMSA)