Serbian term (edited): naredbodavac [izvršenje budžeta]

once adopted, a budget is "executed".

the "normal" procedure for making payments from the budget includes a separation between the "[Payment] Authorizing Officer" [naredbodavac isplate] and the "Payment Officer";

one person is giving the "order to make the payment" but another one is making the payment (exactly as instructed by the Authorizing Officer); it's a standard procedure to double-check every payment and reduce the risk of money vanishing in thin air ...

Grad je naredbodavac za izvršenje budžeta
=
The Town is the authorizing authority for the execution of the budget,

i.e. in practice an official acting of behalf of the Town - an Authorizing Officer - will order which payments from the budget will be made (how much, when, to whom etc...)

more:

https://www.google.co.uk/search?q="authorizing officer&...