Yes, yes, and yes. However, your applicant pool for interns may be separate from your other applicants, depending on how your hiring process works. Also, there may be some special considerations for hiring interns into permanent positions, since they may not compete with outside applicants.
You can use this OFCCP audit checklist to ensure you're doing what is required to maintain OFCCP's regulations including VEVRAA, Section 503, and EO 11246. Or request a demo to streamline your compliance and recruiting efforts.