Most debate over Question 9 is about assault weapons and ghost guns. Less attention goes to what the 2024 gun law, Chapter 135, did to the people who were already licensed, already registered with their local police, and already following Massachusetts law.
Chapter 135 created a set of new offenses that apply to them. A no vote on Question 9 repeals the law, and with it every one of the offenses below. What follows is taken directly from the statute’s text.
1. Not registering a firearm
The rule. Under G.L. c. 140, § 121B(a), “All firearms possessed, manufactured or assembled in the commonwealth shall be registered” in the state’s “real time electronic firearms registration system.” Registration happens at purchase or acquisition. New residents and heirs have 60 days; a privately made firearm must be registered within 7 days of assembly.
The penalty. Under § 121B(e): up to $1,000 for a first offense; up to $7,500 and six months for a second; up to $10,000 and “not less than 1 year nor more than 5 years” for a third or subsequent offense. It is also grounds for “suspension or permanent revocation” of the license.
2. Not reporting a sale, loan or transfer within seven days
The rule. Under § 121B(b), “all purchases, sales, rentals, leases, loans or other transfers” must be reported “by all parties to the transaction” within 7 days. Both sides of a private sale report. There is one carve-out: a loan to a licensed or exempt person for less than 7 days.
Why it matters. A licensed owner who lends a shotgun to a licensed friend for a two-week hunting trip, and does not report it, is in violation. The penalties are the same escalating schedule as for failing to register.
3. Not reporting a loss or theft within seven days
The rule. Under § 121B(c), “Any loss or theft of a firearm shall be reported by the owner” within 7 days, with the make, model, serial number and caliber.
Why it matters. The statute does not say whether the seven days run from the theft or from its discovery. A burglary victim who does not notice a missing firearm for two weeks is the one left to argue the point.
4. Carrying in a “prohibited area”
The rule. Under G.L. c. 269, § 10(k), it is a crime to possess a firearm “loaded or unloaded” in a prohibited area when the person “knows or reasonably should know” it is one. Prohibited areas include government administration, court and correctional properties, “including in or upon any part of the buildings, grounds, or parking areas thereof,” and polling places and early voting sites while open, “or within 150 feet of the building entrance door.”
The penalty. Up to $1,000 and up to two and a half years in a house of correction. Police may arrest without a warrant.
The limits. It is a defense that the firearm was “securely stored” in a vehicle as the storage statutes require. Towns may vote to exclude their administrative buildings. State land open for hunting is excluded.
5. Keeping a grandfathered rifle without registering and serializing it
The rule. Under the new G.L. c. 140, § 131M, no one may possess an “assault-style firearm,” now defined by features such as a pistol grip, adjustable stock, threaded barrel or barrel shroud. The exemption for rifles already owned covers only one “lawfully possessed within the commonwealth on August 1, 2024, by an owner in possession of a license to carry,” and only “provided, that the assault-style firearm shall be registered in accordance with section 121B and serialized in accordance with section 121C.”
The penalty. Section 131M(d): for a first offense, a fine of $1,000 to $10,000 or “imprisonment for not less than 1 year nor more than 10 years.” For a second offense, 5 to 15 years.
Why it matters. Read together, these provisions mean a licensed owner who lawfully had the rifle before the law passed, and who does not complete the registration step, risks losing the grandfather protection and facing a felony carrying up to ten years. That is the most severe consequence in the law for a person whose only failure is administrative.
6. Owning a firearm without a qualifying serial number
The rule. Under § 121C(a), “All firearms shall have a serial number,” engraved or embedded to a depth of at least .003 inches in characters at least 1/16 inch high. Section 121C(b) bars knowingly possessing an “untraceable firearm.” Firearms manufactured before October 22, 1968 are exempt under § 121C(g). Anyone assembling a firearm must obtain a serial number from the state first.
The penalty. Under § 121C(d), up to one year of imprisonment or a fine of up to $5,000 “per firearm per violation,” or both.
7. Being subject to more petitioners for an extreme risk order
This is not a crime, but it is a change for owners. Massachusetts already allowed family members and licensing authorities to petition for an extreme risk protection order, which requires immediate surrender of a license and all firearms. Chapter 135 expanded the list of petitioners to include law enforcement officers who interacted with the person in the previous 30 days, and health care providers who treated the person in the previous six months, including physicians, nurses, psychologists and licensed mental health counselors.
The case these provisions make
Put the list together and the argument for a no vote comes into focus. None of these offenses reaches a person who buys a gun illegally, because that person is not in the registration system to begin with. They reach licensed owners who miss a deadline, lend a firearm, discover a theft late, drive into a town hall parking lot, or do not complete a step to keep a rifle they already owned. Several carry jail time. One carries up to ten years.
There is an answer to that: registration and serialization are what make firearms traceable, and the penalties escalate so that a first lapse is a fine. A no vote would also remove the rules on privately made firearms. Those are real arguments, and they are laid out in our piece on the case for yes. This one is about who pays the price for the rest of the law.
Frequently asked questions
Do I have to register every gun I own in Massachusetts?
Under G.L. c. 140, section 121B, all firearms possessed in the commonwealth must be registered in the state’s electronic registration system. A no vote on Question 9 would repeal that requirement along with the rest of Chapter 135.
What happens if I lend a gun to a friend?
All parties must report a loan through the registration system within 7 days, unless it is a loan to a licensed or exempt person for less than 7 days.
What is the penalty for keeping an assault-style firearm that was not registered?
The grandfather exemption in section 131M requires registration and serialization. A violation of section 131M carries 1 to 10 years for a first offense, or a fine of $1,000 to $10,000.
Do old guns need new serial numbers?
Firearms manufactured before October 22, 1968 are exempt from the serialization requirement under section 121C(g).
Would a no vote on Question 9 repeal all of these?
Yes. Each of these provisions was created or amended by Chapter 135 of the Acts of 2024, which a no vote repeals.
Every rule, exemption and penalty in this piece is quoted or summarized from the text of Chapter 135 of the Acts of 2024, read at malegislature.gov: G.L. c. 140, sections 121B, 121C and 131M and the definitions of “assault-style firearm” and “petitioner” in section 121; and G.L. c. 269, section 10(k). How a court would apply these provisions to particular facts has not been decided in the cases we describe. General information about Massachusetts law, not legal advice.