The updated rules will also expand verification, withdrawal and bet-voiding controls.
The agreement will support retired racehorses transitioning into equestrian sport.
The group will assess potential transactions after earlier takeover approaches failed to progress.
Hinton will permanently take over the role from Peter V’landys in December.
At a parliamentary hearing, the gaming commission chair questioned the combined impact of measures replacing Tasmania’s planned poker machine pre-commitment card.
The rules take effect from 25 September under the Totalisator Act 2014, amid a wider programme of gambling regulatory reform in the Australian Capital Territory.
Iris already controls 85.77% of the Cairns casino owner following the completion of its first takeover offer in August. The latest bid is unconditional.
Nick Weeks will remain casino manager until 30 June 2027.
The extension gives The Star another six months to progress outstanding remediation work.
The Victorian regulator found Tabcorp failed to fully implement mandatory multi-factor authentication.