Many standard forms are available below. All forms are categorized into their respective departments.By signing in or creating an account, some fields will auto-populate with your information. Middlesex County Employment Application. Business Registration Form. Position(s) applying for. Register your company to receive email notifications for upcoming solicitations. You must complete an employer registration form for us to decide if you are liable under the New York State Unemployment Insurance Law. If 1(a) is "YES" enter the date you hired your 1st New Jersey employee. c. This date must be provided for Unemployment and Disability registration purposes.