. ▁The ▁Tre as ury ▁Corporation ▁of ▁Victoria ▁out lines ▁that ▁the ▁Victor ian ▁Parliament ' s ▁key ▁respons ib ilities ▁are : ▁" ed uc ation , ▁public ▁health , ▁police ▁and ▁justice , ▁transport , ▁roads ▁and ▁rail ways , ▁industry , ▁min ing ▁and ▁agricult ure , ▁public ▁works , ▁ports , ▁forest ry , ▁electric ity , ▁gas , ▁and ▁water ▁supply ▁and ▁ir rig ation ." ▁ ▁The ▁parliament ▁may ▁le vy ▁its ▁own ▁tax es , ▁however , ▁income ▁tax es ▁have ▁been ▁the ▁exclusive ▁domain ▁of ▁the ▁federal ▁government ▁for ▁dec ades . ▁The ▁state ▁government ' s ▁chief ▁means ▁of ▁re venue ▁( out side ▁of ▁gr ants ▁from ▁the ▁federal ▁government ) ▁comes ▁from ▁a ▁combination ▁of ▁pay roll ▁tax es , ▁stamp ▁duties ▁on ▁housing ▁and ▁vehicles ▁and ▁a ▁portion ▁of ▁the ▁goods ▁and ▁services ▁tax ▁that ▁is ▁divided ▁amongst ▁all ▁states . ▁The ▁Victor ian ▁Government ▁may ▁never ▁le vy ▁new ▁tax es , ▁nor ▁spend ▁funds ▁unless ▁it ▁has ▁been ▁specifically ▁author ised ▁to ▁do ▁so ▁by ▁the ▁parliament . ▁It ▁may ▁spend ▁funds ▁raised ▁by ▁tax es ▁from ▁the ▁federal ▁government , ▁although ▁such ▁sp ending ▁must ▁still ▁be ▁approved ▁by ▁the ▁Victor ian ▁Parliament . ▁Victoria ▁has ▁de ferred ▁its ▁powers ▁to ▁the ▁federal ▁parliament ▁over ▁time ▁as ▁Australia ▁has ▁concentr ated ▁power ▁into ▁its ▁federal ▁government . ▁This ▁is ▁most ▁often ▁done ▁with ▁the ▁practice ▁of ▁" t ied ▁gr ants ", ▁where by ▁the ▁federal ▁government ▁funds