If you have been a member of the Army National Guard for less than 60 days, you must have your Recruiter register you. The Recruiter must login to their Virtual Armory account and use the New Recruit Registration Form.  

If you have been a member of the Army National Guard for more than 60 days, use the registration form on the homepage.
https://www.virtualarmory.com/registration/register.aspx

If you are not a member of the Army National Guard, you must be sponsored by an active Army National Guard member who is registered on Virtual Armory. Your sponsor must login to their Virtual Armory account and use the Sponsored Members Registration Form.
https://www.virtualarmory.com/registration/register.aspx?sponsor=1