U radu se u opisuju i analiziraju instituti u hrvatskom općem upravnom postupku kojima se nastoji osigurati zaštita ideje pravne sigurnosti stranki. Naime, Zakonom o općem upravnom postupku iz 2009. ideja pravne sigurnosti stranaka razrađena je i unaprijeđena normiranjem nekih novih instituta no, nažalost, djelomično i oštećena i unazađena nepotrebnim izbacivanjem iz teksta zakona načela konačnosti. Kako bi se navedene teze mogle dokazati u radu se najprije opisuje institut pravomoćnosti koji je u hrvatskom općem upravnom postupku poznat već više od 80 godina. U navedenom se dijelu rada ističe i koncepcija konačnosti te navodi u kojem je smislu konačnost podupirala načelo pravomoćnosti. U sljedećem poglavlju opisuje se načelo zaštite legitimnih očekivanja. Zaključno, navodi se kako je od velike važnosti tekst Zakona o općem upravnom postupku uvrstiti i načelo zaštite legitimnih očekivanja te nastaviti razrađivati institute kojima se podupire ideja pravne sigurnosti.The author in the article describes and anlyses the instiutes in Croatian general administrative procedure which seek to ensure the idea of protection of legal certainty of the parties. Namely, the General Administrative Procedure Act from 2009 elaborates and improves the idea of legal certainity of the parties in a way that some new institutes are regulated. But, unfortunately, the idea is also partialy damaged and demoted with unnecessary ejection from the text of the principle of finality. To be able to prove this hypothesis, the article first describes the institute of finality which is known in Croatian administrative procedure for more than 80 years. In this part of the article the concept of finality is highlited and the sense in which finality supported the principle of legal effectiveness is explained. The following sections analyze the institutes of guaranteed conferral of rights and informing the parties of the terms of realization and protection of the rights which, the author belives, deal with the principle of protection of legitimate expectations. In conclusion, it is stated that it is of great importance to include in the text of the General Administrative Procedure Act the principle of protection of legitimate expecations and to continue to elaborate the institutes which support the idea of legal certainity
