And will these rules apply in the A League?
Anything under Laws of the Game are FIFA rules and supposed to apply to official leagues where the new season kicks off after June 1st.
VAR is not mandatory, nor is allowance for 4th sub for extra time games.
The goal kick rule, new handball rules, attacking players 1m from wall, uncontested drop ball for injury stoppages or ball hitting refereee are all supposed to apply.
Edit to add: except where permission given by FIFA to federation to modify rules for internal competitions.