By the end of the week, all 273 assisted living facilities in Massachusetts will be required to send a letter to all residents and families detailing fire safety protocols, evacuation procedures and key points of contact.

Gov. Maura Healey on Friday announced a spate of safety-focused changes that she said her administration is requiring assisted living centers to make in response to the fire that killed nine residents at the Gabriel House assisted living facility in Fall River last Sunday. The governor called it “a moment to make sure that every Assisted Living Residence is prepared to respond to emergencies and to protect the safety of their residents.”

The Executive Office of Aging & Independence, which certifies and regulates assisted living centers, will launch a statewide Fire and Life Safety Initiative starting Monday.

Under that program, the state’s 273 facilities must issue letters with safety details within five business days and also complete and return a state fire safety assessment survey. That survey is intended to measure compliance with fire safety requirements around sprinkler systems, fire drills, evacuation protocols and maintenance of fire-rated doors and walls. Facilities must return the survey along with a copy of their current, site-specific Disaster and Emergency Preparedness Plan.

The state said facility operators must also report “the age and key systems within their buildings to help prioritize oversight.”

“We are engaging every assisted living provider in this process. By requiring clear communication with residents and detailed reporting to the state, we are making sure resident safety is front and center — today and every day,” Aging & Independence Secretary Robin Lipson said.

The Fall River Fire Department responded to the Gabriel House assisted living facility at 261 Oliver St. at about 9:50 p.m. Sunday, and firefighters found many of the facility’s 70 residents trapped by the smoke and fire. Dozens were rescued, but ten residents died from the blaze.