<p>I know that the common app allows you to submit 1 teacher rec. Is it possible to submit another non-teacher rec by mail?</p>
<p>Yes, just make sure that the recommender includes your full name and birthdate and/or SS # to be sure that the letter ends up in the right file. My son sent in a recommendation (actually two) from non-teachers who knew his academic abilities in his field better than any of his high school teachers.</p>