The peak clinical bodies that contribute to guidelines for the provision of CPR and first aid in Australia include:

• Australian Resuscitation Council (ARC): The primary body that develops and promotes policies and standards for resuscitation practices including CPR guidelines.
• Australasian Society of Clinical Immunology and Allergy (ASCIA): Contributes specifically to first aid guidelines related to managing severe allergic reactions such as anaphylaxis.
• Asthma Australia: Provides guidelines and training related to managing asthma attacks as part of first aid.

Therefore, all these organizations collectively contribute to Australia's CPR and first aid guidelines in their respective areas of expertise.