internship rec letter

hello! Over a summer, i worked at a health center. My supervisor wants to send the rec letter. Does he have to send it to every colleges that im applying to, or do I send it to the colleges that im applying to? Thanks!!

A rec letter for colleges you are applying to?

Mostly colleges want teachers, not job supervisors. However, some schools will allow a 2nd or 3rd letter. When you decide where you are applying check their policies to see an then you can tell him where to send them.

Thanks!