Youth may take the course online, but are required to take the field day in person. You can take it state from TYHP or a paid privet version. If you go with the privet version you spend $15.00 to $30.00 for the course and $15.00 for the field day.
Adults may take a privet online course only, no field day is required. This is what I did so I could get my instructor certificaton.