When should I start applying for internships?

I am currently a 2nd year Biomedical Engineering student, I plan to transfer to a different college next fall. My question - should I wait to apply for internships until I transfer? Or is there an expected time to start applying? I tried asking my academic advisor but he can’t give me a straight answer.

Are you asking about internships during the summer or during the school year? There is a lead time to getting interviewed and selected so if you wait till you get there the slots will be filled.