As mentioned here, the transition to online registration has allowed Cricket Australia to streamline and aggregate the national costs of participation into one single fee.
One component of the NRF is a contribution towards the National Club Risk Protection Program (NCRPP), which provides Clubs and their members with comprehensive insurance coverage that is industry leading across community sport. Please go to the Marsh Sports website to see exactly what the NCRPP covers - https://au.marsh.com/sport/cricket-australia.html
The introduction of the NRF removes the administrative burden of clubs needing to pay insurance fees directly. In terms of attaining your Certificate of Currency for the 2022/23 summer, when July 1st rolls around, all Clubs will receive a communication from Marsh Sports outlining the step-by-step process. For those Associations requiring access to their Certificate of Currency prior to the end of season 22/23, please reach out to your State or Territory contact.