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What are the most important things to know about a scuba diving license?
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1.  The first thing you need to understand is that a scuba diving license is not an essential item for every diver.
2.  You also need to make sure you're aware of the specific requirements and regulations in your area, as they may vary from region to region.
3.  It's important to have proper training before applying for a scuba diving license, so make sure to do some research on local dive schools or organizations that offer classes.