Your instructor will ask you to complete a medical history form before allowing you to participate in water activities. This is for your own safety, so please be honest when completing it.

You will be asked to seek a doctor's approval if your instructor is unsure of your fitness to dive. Certain conditions present unnecessary risks, so you will not be accepted for training if you suffer from certain respiratory or circulatory conditions. Additionally, if you are pregnant, you will not be accepted because it's unknown if the pressure changes encountered while diving are safe for the fetus.

Inform your instructor if you become ill during this course. Minor illnesses such as colds or sinus infections can lead to serious injuries while diving, so you'll be asked to complete the course after you regain your health.