As of Tuesday, September 9, a Chelsea police officer may not ask you about your immigration status during a traffic stop, may not hold you in a cell because federal immigration authorities asked, and may not sign a new agreement to help enforce civil immigration law. Your employer must give you 48 hours’ written notice, in your language, before letting ICE inspect the paperwork that proves you are allowed to work. And by October 4, every hospital, clinic, nursing home and substance use program in the state must have a written policy for what happens when a civil law enforcement officer walks in.
Those are the pieces of the PROTECT Act that took effect this week, and on Tuesday Governor Maura Healey’s administration released the guidance documents that tell police departments, employers, health care providers and state agencies how to follow them. In a city where nearly half the residents were born abroad, this is the most consequential change in the relationship between local government and federal immigration enforcement in years.
What the law does
Healey signed the PROTECT Act on August 5 after the Legislature passed a compromise version. The law does several things at once. It bars civil immigration arrests without a judicial warrant in what it calls sensitive places: courthouses, schools, child care programs, nursing homes and health care facilities. It restricts the use of nonpublic areas of state property for civil enforcement. It writes into statute the Supreme Judicial Court’s 2017 Lunn decision, which held that Massachusetts police have no authority to hold someone solely on an ICE detainer. It prohibits new 287(g) agreements, the arrangements under which local officers act as immigration agents, while leaving the existing Department of Correction agreement in place. It bars officers from asking about immigration status in routine policing. It requires employers to notify workers of ICE inspections of I-9 employment forms. And it creates a right for people whose rights are violated to sue in state court.
The school provisions took effect first. Districts had to have written response plans for law enforcement encounters by September 1 or the first day of school, and the state issued that guidance in late August.
What came out Tuesday
The September 9 release covers four audiences.
Police and dispatchers. Roll call training materials explain the new limits on status inquiries and detainer holds, and make the point the administration has repeated at every step: criminal investigations and lawful arrests are unchanged. An officer who arrests someone for a crime does exactly what they did last month. What changes is what the officer may do at the request of a federal civil agency. For Chelsea, whose police department built its All-America City application on community trust, the roll call materials are the document to watch.
Employers. The state published sample notice forms. When ICE serves a Notice of Inspection for I-9 records, the employer now has 48 hours to tell each affected employee in writing, in the employee’s primary language. “This guidance gives employers clear steps while ensuring workers receive timely information,” Labor Secretary Lauren Jones said. Chelsea’s food processing plants, warehouses and restaurants are exactly the workplaces where these inspections happen.
Health care. Model policies for hospitals, clinics, nursing homes and treatment programs to designate a point of contact and set procedures for law enforcement visits, due in place by October 4. “No one should have to weigh their health and safety against the fear of immigration enforcement,” said Health and Human Services Secretary Kiame Mahaniah. The policies apply to the community health centers in Chelsea as much as to Massachusetts General.
State buildings. Guidelines barring civil arrests in designated nonpublic areas of state property unless required by law, authorized by a judicial warrant, or needed for an immediate safety threat. “No one should be afraid to access state buildings or government services to which they are entitled,” said Administration and Finance Secretary Matthew Gorzkowicz. The courthouse and the state offices in the city are covered.
What it does not do
The law binds Massachusetts officials, employers and institutions. It does not bind federal agents, who retain their authority to make civil arrests in public places and, with a judicial warrant, in nonpublic ones. It does not make Chelsea a sanctuary city in any formal sense; it sets statewide floors. And its enforcement runs through the courts, which means its real meaning will be worked out case by case.
For residents, the practical steps are the ones advocates have recommended for years and the law now backs: know that you are not required to answer a local officer’s questions about your status, keep the phone number of an immigration attorney, and if your employer receives an inspection notice, you are now entitled to hear about it within two days. The city’s immigration support page at chelseama.gov collects local resources.
Sources: Governor’s Office announcement, September 9, 2026, as published by the Revere Journal, Chelsea Record and Winthrop Transcript; Massachusetts Municipal Association, August 2026; Mass.gov school guidance, August 2026; Commonwealth v. Lunn, 477 Mass. 517 (2017). Photo: Massachusetts State House, by King of Hearts via Wikimedia Commons, CC BY-SA 4.0.