CROSO

1. (social insurance registry) Central Registry of Compulsory Social Insurance
   Poslodavac me je prijavio u CROSO prvog dana. — My employer registered me with CROSO on my first day.
   Prijavu na osiguranje možete proveriti u CROSO-u. — You can check your insurance registration in CROSO.

Pronounced "kroso" and usually declined like a noun: prijava u CROSO (accusative) but proveriti u CROSO-u (locative); the usual phrase is "prijava u CROSO", registering an employee for social insurance.