Photo of Mark Montigny
D Massachusetts Senate · District Second Bristol and Plymouth On the 2026 ballot

Sen. Mark Montigny

Compare
Total votes
1,655
all sessions
Attendance
100%
of floor votes
Near the chamber average
With party
96%
of cast votes
Among the lowest in the chamber
Bipartisan score
2%
crosses aisle rarely
Higher than 97% of chamber peers
Sponsored
803
bills & resolutions
Near the chamber average
Committees
5
assignments
803 bills and resolutions

Sponsored bills

Total
803
Primary
370
Co-sponsor
433
This page
803
matching current filters
Co-sponsor H 4907
Passed · Massachusetts House · Co-sponsor
An Act relative to the sale of nitrous oxide

Maddy summaryHD 5459 restricts the retail sale of nitrous oxide cartridges (like "whippets" or "cream chargers") to prevent recreational misuse while preserving access for legitimate culinary, medical, dental, and industrial uses. It requires authorized sellers (licensed culinary or medical supply businesses) to verify customers' age with ID, keep products out of public view, and maintain sales records for one year. The law prohibits sales to anyone under 21 for recreational use and mandates visible warning signs at point of sale. Violations carry civil penalties up to $1,000 per offense, with potential license suspension.

Passed Mar 25, 2026 1 co-sponsor
Primary S 640
Passed · Massachusetts Senate · Lead sponsor
An Act promoting humane cosmetics and other household products by limiting the use of animal testing

By Mr. Montigny, a petition (accompanied by bill, Senate, No. 640) of Mark C. Montigny, John F. Keenan, Joanne M. Comerford, Michael O. Moore and other members of the General Court for legislation to promote humane cosmetics and other household products by limiting the use of animal testing. Environment and Natural Resources.

Passed Mar 12, 2026 0 co-sponsors
Primary S 1190
Passed · Massachusetts Senate · Lead sponsor
An Act enhancing the issuance of citations for cruel conditions for animals

Maddy summarySD 1398 expands protections for domestic animals by defining "cruel conditions" to include exposure to waste, lack of food/water, or inadequate weather protection, and explicitly includes livestock under "domestic animal." It imposes tiered fines for violations: up to $50 for a first offense, $200 for a second, and $500 for third or subsequent offenses, with possible animal impoundment or loss of ownership for repeat violations. The bill affects owners or keepers of all domestic animals, including livestock, by establishing clearer standards for animal care. Fines collected under this law must be deposited into the Homeless Animal Prevention and Care Fund.

Passed Mar 12, 2026 0 co-sponsors
Primary S 1196
Passed · Massachusetts Senate · Lead sponsor
An Act to prevent child labor exploitation and trafficking

Maddy summaryThis bill amends Massachusetts child labor laws to close a loophole allowing minors to work in seafood processing. It removes the previous seasonal exemption for fish processing (Section 3) and explicitly prohibits child labor in seafood packing or processing facilities (Sections 1, 2, 4, 5). The bill significantly increases penalties for violations, raising fines from hundreds to up to $100,000 (Sections 6, 7, 9, 11) and adding jail time of up to six months. These changes directly affect minors working in seafood facilities and employers who violate child labor rules in this sector.

Passed Mar 9, 2026 0 co-sponsors
Primary S 2509
Passed · Massachusetts Senate · Lead sponsor
An Act relating to vacancies in the office of mayor in the city of New Bedford

By Mr. Montigny, a petition (accompanied by bill, Senate, No. 2509) of Mark C. Montigny and Antonio F. D. Cabral (with approval of the mayor and city council) for legislation relating to vacancies in the office of mayor in the city of New Bedford. Election Laws. [Local Approval Received.]

Passed Feb 25, 2026 0 co-sponsors
Co-sponsor H 1255
Passed · Massachusetts House · Co-sponsor
An Act relative to reducing unnecessary delays in patient care

Maddy summaryHD 3295 requires insurance payers to respond to healthcare providers' prior authorization requests within 24 hours, instead of the previous 2 business days. It prohibits payers from using appeals processes or administrative delays to postpone responses once a request is complete. The state health division will conduct audits to verify that payers comply with these new response time requirements. This bill directly affects healthcare providers seeking timely approvals for patient care and the insurance companies handling those requests.

Passed Feb 9, 2026 1 co-sponsor
Primary S 1188
Passed · Massachusetts Senate · Lead sponsor
An Act extending the statute of limitations for certain actions involving international human rights abuses

Maddy summaryThis bill extends the time limit for victims to file civil lawsuits related to specific international human rights abuses. It allows victims of trafficking for forced labor or sexual servitude to file within 10 years of being freed (or until age 18 if a minor during the abuse), and covers lawsuits for torture, genocide, war crimes, crimes against humanity, and extrajudicial killings. The law applies retroactively to past cases and permits victims who win to recover attorney fees. It directly affects individuals who suffered these abuses, providing a longer window to seek legal remedies.

Passed Feb 5, 2026 0 co-sponsors
Primary S 1187
Passed · Massachusetts Senate · Lead sponsor
An Act to prevent human trafficking through increased public awareness

Maddy summaryThis bill requires public awareness signage with the National Human Trafficking Resource Center hotline (1-888-373-7888) in transportation hubs (like MBTA stations, rest areas, and airports), welcome centers, and hospitals. It mandates anti-trafficking training for transit employees (bus drivers, operators, and staff) and transportation network company drivers (e.g., Uber/Lyft), covering definitions of trafficking, signs to recognize, and reporting protocols. The training must be integrated into existing employee programs and updated biannually. It also disqualifies convicted traffickers from commercial driver’s licenses and prevents sealing of trafficking conviction records. The bill directly affects Massachusetts transportation systems, hospitals, and ride-share services.

Passed Feb 5, 2026 0 co-sponsors
Co-sponsor S 1152
Passed · Massachusetts Senate · Co-sponsor
An Act relative to rental protections for elderly, disabled and low-to-middle income tenants

By Mr. Lewis, a petition (accompanied by bill, Senate, No. 1152) of Jason M. Lewis and Mark C. Montigny for legislation relative to the termination of rental agreements or tenancy by certain tenants. The Judiciary.

Passed Feb 5, 2026 1 co-sponsor
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