With Phase 3B starting today, All New Hampshire residents 16 and older will be able to register for coronavirus vaccine appointments.

Sununu also said at his weekly COVID news briefing that it’s possible that all New Hampshire residents may have their first shots by Memorial Day, and that the state is getting its “first significant increase” in Johnson & Johnson vaccine doses in weeks.

Starting this past Monday, Granite State residents 40 years old and up were eligible to sign up for the vaccine, followed by people 30 and up on Wednesday and people 16 and up today, Friday, April 2. Only the Pfizer vaccine has been approved for those ages 16-18, and sites will note that for that group.

“It allows everyone to get into the system, everyone to have a guaranteed time,” Sununu said.

It’s the last phase of the current coronavirus rollout, with people 50 years old and up already eligible to sign up, as well as various essential workers and teachers. The vaccines with federal approval haven’t been fully studied on children under 16, and they won’t be eligible to sign up until that changes.