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SENATE DOCKET, NO. 1447 FILED ON: 1/16/2025
SENATE . . . . . . . . . . . . . . No. 644
The Commonwealth of Massachusetts
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PRESENTED BY:
Michael O. Moore
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To the Honorable Senate and House of Representatives of the Commonwealth of Massachusetts in General
Court assembled:
The undersigned legislators and/or citizens respectfully petition for the adoption of the accompanying bill:
An Act restricting the use of rodenticides in the environment.
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PETITION OF:
NAME:DISTRICT/ADDRESS :Michael O. MooreSecond WorcesterCarmine Lawrence Gentile13th Middlesex1/21/2025David T. Vieira3rd Barnstable1/21/2025Paul W. MarkBerkshire, Hampden, Franklin and
Hampshire
1/22/2025Joanne M. ComerfordHampshire, Franklin and Worcester1/22/2025Marc T. Lombardo22nd Middlesex1/22/2025Brian W. Murray10th Worcester1/28/2025Hannah Kane11th Worcester1/28/2025Mark C. MontignySecond Bristol and Plymouth1/28/2025James B. EldridgeMiddlesex and Worcester1/28/2025John J. CroninWorcester and Middlesex1/28/2025David K. Muradian, Jr.9th Worcester1/30/2025Dylan A. FernandesPlymouth and Barnstable2/3/2025Thomas M. Stanley9th Middlesex2/7/2025Rodney M. Elliott16th Middlesex2/7/2025Jacob R. OliveiraHampden, Hampshire and Worcester2/7/2025James K. Hawkins2nd Bristol2/11/2025 2 of 2
Bradley H. Jones, Jr.20th Middlesex2/11/2025Edward J. KennedyFirst Middlesex2/11/2025John J. Marsi6th Worcester2/11/2025Christopher Richard Flanagan1st Barnstable2/11/2025Vanna Howard17th Middlesex2/19/2025Jason M. LewisFifth Middlesex2/19/2025Manny Cruz7th Essex2/19/2025Patricia D. JehlenSecond Middlesex2/19/2025Michael J. BarrettThird Middlesex2/20/2025Cindy F. FriedmanFourth Middlesex3/2/2025Bruce E. TarrFirst Essex and Middlesex3/3/2025Adam J. Scanlon14th Bristol3/4/2025Patrick M. O'ConnorFirst Plymouth and Norfolk3/6/2025 1 of 3
SENATE DOCKET, NO. 1447 FILED ON: 1/16/2025
SENATE . . . . . . . . . . . . . . No. 644
By Mr. Moore, a petition (accompanied by bill, Senate, No. 644) of Michael O. Moore, Carmine
Lawrence Gentile, David T. Vieira, Paul W. Mark and other members of the General Court
relative to pesticides. Environment and Natural Resources.
[SIMILAR MATTER FILED IN PREVIOUS SESSION
SEE HOUSE, NO. 3991 OF 2021-2022.]
The Commonwealth of Massachusetts
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In the One Hundred and Ninety-Fourth General Court
(2025-2026)
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An Act restricting the use of rodenticides in the environment.
Be it enacted by the Senate and House of Representatives in General Court assembled, and by the authority
of the same, as follows:
1 SECTION 1. Section 2 of chapter 132B of the General Laws, as appearing in the 2022
2Official Edition, is hereby amended by inserting after the definition of “Animal” the following:-
3 “Anticoagulant rodenticide”, any pesticide product that has a mode of action that
4interferes with blood clotting including, but not limited to, the following active ingredients:
5Brodifacoum, Bromadiolone, Chlorophacinone, Difenacoum, Difethialone, Diphacinonon, or
6Warfarin.
7 SECTION 2. Section 5 of said chapter 132B of the General Laws, as so appearing, is
8hereby amended by adding at the end thereof the following paragraph:- 2 of 3
9 The department, with the approval of the board, shall by regulation establish a process
10and standards for the limited use of anticoagulant rodenticides by licensed applicators in public
11health emergencies, provided that such process and standards provide for one-time indoor use in
12a single location to address an urgent public health emergency, as determined by the state
13department of public health and such use shall: (i) be limited to 14 days; (ii) be accompanied by
14integrated pest management actions that include non-chemical methods and exclusionary
15measures to control rodents; (iii) require additional labeling of anticoagulant rodenticides used,
16including but not limited to, the name of the rodenticide clearly labeled on any bait box; (iv)
17require written rationale for the need for anticoagulant rodenticides over other non-toxic short-
18term alternatives; and (v) require applicators to report to the department after the 14-day
19emergency use period and include a plan for ongoing rodent control at the location.
20 Regulations shall also include provisions for the emergency use of anticoagulant
21rodenticides to protect drinking water supply, to control vectors for mosquito-borne illness, and
22for emergent infectious disease control.
23 SECTION 3. Section 7 of said chapter 132B of the General Laws, as so appearing, is
24hereby amended by adding at the end thereof the following paragraph:-
25 The subcommittee as established in section 3A of this chapter shall not register or
26reregister anticoagulant rodenticides, except that it may register or reregister anticoagulant
27rodenticides for emergency use, as provided by the department pursuant to section 5 of this
28chapter.
29 SECTION 4. The department shall report annually and include on its website information
30regarding the emergency use of anticoagulant rodenticides including, but not limited to, locations 3 of 3
31where the anticoagulant rodenticide was used, the types and amounts used, the contents of
32ongoing rodent control plans required in section 5 of chapter 132B, and relevant accompanying
33documents.
34 SECTION 5. This Act shall take effect January 1, 2027.