How do you get service credits?

<p>Hi, I am new in the United States and was wondering how you can get credited for volunteering outside of school. I know it is very different in every school but back in the Philippines, none of these things ever happened. So this is basically my first time. So say you did 20 hours at church, how does the school know that you did work outside of school? Do they need a letter to send to the school? (And what does it consist of?) Or can you just write it on your achievements in your transcript? <– Are they totally different things?</p>

<p>Also if you don’t mind answering more questions, can I volunteer at a really small bakeshop and get papers of proof that I volunteered there, and also helping my sister’s firm? Thanks a lot!</p>