Pima County registration for Phase 1B underway Online registration begins 9:00 a.m. 1/14/2021 The first vaccines arrive that will be administered by healthcare providers By Bud Foster | January 13, 2021 at 5:27 PM MST - Updated January 13 at 5:27 PM TUCSON, Ariz. (KOLD News 13) - Pima County has announced it is moving into a new phase for coronavirus vaccinations nearly a month after starting the process which included doctors, nurses and staff. About 31,000 have been vaccinated in phase 1A. Phase 1B will include police, fire, those 75+ and other essential personnel. It’s a large group which the county estimates will could be as many as 325,000 people. It’s hoped this group will be finished by the end of March.