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Massachusetts security guard license: what the law requires (2026)

7 min read · Updated September 27, 2026

Massachusetts does not license individual security guards. The State Police Certification Unit licenses watch, guard or patrol agencies under M.G.L. chapter 147, sections 22 to 30, and those sections set the rules for every guard an agency employs. A separate appointment, special state police officer, gives some college and hospital security staff police arrest powers on their employer's property.

Which rules apply to you

Who an agency can hire

Before your first shift

Training

The state sets no training hours for agency guards. Your employer decides what training you get, so keep copies of every certificate: they are your proof of training when you change jobs.

Badges, vehicles and what you can say

Strikes and labor disputes

Massachusetts keeps security agencies out of labor fights. A licensed agency and its employees may not interfere with lawful picketing, collective bargaining or employees' right to join a union; supply replacement workers or armed guards for property operating during a strike, beyond guards already regularly employed there; furnish armed guards on the highways for people involved in a labor dispute; or pay anyone for reports on employees' lawful union activity (c.147 §30). A violation carries a fine of $200 to $1,000, or 6 months to a year in jail, or both. An agency also cannot enter a workplace to deal with organizing, wages or working conditions (c.147 §27).

Weapons

Special state police officers

Starting your own agency

How tessura helps

A Massachusetts guard has no state card to renew, but the rest still expires: a License to Carry, CPR and first aid cards, and your employer's training and range qualifications. tessura is free for guards: keep every card and certificate in the credential wallet and get reminders at 60, 30 and 7 days before each one expires.

tessura is not affiliated with the Massachusetts State Police or any state agency. Rules change, so confirm anything you rely on with the State Police Certification Unit.

Sources

Keep your Massachusetts credential alive

Add it to the free tessura wallet with the expiration date on the card and get reminders at 60, 30, and 7 days before it lapses.

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What security guards earn in Massachusetts →How to check a license in Massachusetts →Every Massachusetts security credential and its rules →