Many standard forms are available below. All forms are categorized into their respective departments.All applicants apply online, using either the Middlesex application through Gateway to Prep Schools (Gateway) or the Standard Application Online (SAO). Follow the Steps Below If You Have a High School Diploma or GED: Apply to the College. Business Registration Form. By signing in or creating an account, some fields will auto-populate with your information. Middlesex County Employment Application. Position(s) applying for.