Final answer:
The CPR qualification for an AUSTSWIM teacher licence in Australia needs to be updated every 1 year to ensure the safety and preparedness of instructors.
Step-by-step explanation:
To ensure that an AUSTSWIM teacher licence remains valid in Australia, the CPR qualification needs to be updated every 1 year. This requirement is critical for maintaining a high standard of safety and preparedness in swimming and water safety instructional roles. Staying current with CPR techniques is vital, as it ensures that swim teachers are equipped to respond effectively to any emergency situations that may arise during their classes.