If you choose to fulfill the volunteer requirement by having a yourself, a teammate, a family member, or friend fill the volunteer shift you can get them registered through the Team Center! After the Volunteer Start date for your specific event passes, you can go into Team Center under the Roster section, and select the button to Invite a Volunteer. Once you send the invite on your end, your volunteer can register, select their shift, and check in with HQ onsite for before their shift on race day.
**If you are the captain of the team and also planning to be a volunteer, the process remains the same. You will still need to input your email into the Volunteer Add section to send yourself an invite to register as a volunteer.