Florida Bright Futures Community Service Hours?

I know that you need 75 hours for Florida Bright futures, I also know that half of those hours may be completed by a mission trip. How do you record those though? Do I need to write a paper (if so what are the requirement for that) or can it be completed by just having a signed paper?|||Any adult can sign the records of your service. It helps if they leave a contact number so it can be verified. You can also go to a bank and have the signature notarized.