Resign from volunteering
Dear Mr./Ms. Manager?s Name
Please accept this letter as my resignation from Company Name effective Date of Resignation.
I have enjoyed the time spent with the Company Name as a volunteer and I feel that I have completed my duties to the best of my knowledge while employed. I have accepted a position in the field summer program at New Company Name. With my new full time employment I will not be able to volunteer with Company Name any more. Please be assured that I will do my best to assist in the smooth transfer of my responsibilities before leaving.
I appreciate your understanding of my reason to leave and wish nothing but continued success to you and the organization in the future.