The governor will sign an executive order moving the state to Stage 5 of Indiana's five-stage Back on Track reopening plan for at least a three-week period, beginning at 11:01 p.m. Friday in Northwest Indiana.
The state directive to wear a mouth and nose covering in public places where social distancing is not possible likely will be in place for months to come.
Dr. Chandana Vavilala, Lake County's health officer, said Monday she determined a mask order is needed to minimize the spread of the coronavirus.
Staff and visitors at Hammond municipal buildings will now be required to wear a face covering inside the buildings, city officials said Monday.
All of Indiana, including Lake County, is advancing to stage 4 of Gov. Holcomb's "Back on Track" reopening plan, beginning at 11:01 p.m. Region time Thursday.