On 13 Aug, those aerstrips which are registered will be called certified and will require radio. Until then they are registered and do not require radio, but if you have radio you must use it.
Those such as YIVG, my home strip are not registered or certified at this time and i am assuming that it will stay that way, but as we all have and use radio it doesn't matter. What does matter is all the airstrips, such as YMIM Miriam vale which are on the charts and haven't existed for years. As it stands at the moment we should listen and advise our progress on 126.7 when we are near places like that and in the meantime cannot necessarily be listening on area frequency. This means two or more aircraft could be close together on different frequencies.