This letter is needed as a part of the intern's initial application to request a DS7002 and DS2019 from ISSS, for the studentintern to apply for their visa. Important information that should be in an internship offer letter.Congratulations on this new opportunity. If you are a qualifying applicant, please attach your DD214 and any other relevant documentation to your application if you wish to claim veteran's preference. The Psychology Internship Program offers interns unique training and opportunities to work with a diverse patient population. Interns spend approximately 9 months in our clinical laboratory training school, completing classroom and hands-on clinical laboratory bench training. Sign up for email updates about jobs, internships, alumni and employer profiles, and more! Fill out the Online Application – Google Form. The application process for a hospital volunteering position can take a number of weeks (or longer).