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SB 423
Maryland Senate•Signed by Governor
Summary
SB 423, “Research Facilities and Testing Facilities That Use Animals - Prohibitions and Adoption Requirements (Animal Research Modernization and Best Practices Act of 2026)”, was introduced in the Senate on Jan 30, 2026 by Sen. Benjamin Kramer (D). It last saw action on Apr 28, 2026: Approved by the Governor - Chapter 230.
Record
Text
SB 423 has 2 roll calls.
sb423/chaptered.txtWES MOORE, Governor Ch. 230Chapter 230(Senate Bill 423)AN ACT concerningResearch Facilities and Testing Facilities That Use Animals – Prohibitions andAdoption Requirements(Animal Research Modernization and Best Practices Act of 2026)FOR the purpose of prohibiting a research facility or testing facility from using certain dogsand cats for research or testing purposes; prohibiting a research facility or testingfacility from performing certain procedures on dogs or cats; prohibiting a testingfacility from using traditional animal test methods under certain circumstances;applying certain provisions of law regarding the adoption of dogs and cats used forscientific research purposes to testing facilities; and generally relating to researchfacilities and testing facilities that use animals in research, education, or testing.BY repealing and reenacting, with amendments,Article – AgricultureSection 15–101 to be under the amended title “Title 15. Research Facilities andTesting Facilities That Use Animals”Annotated Code of Maryland(2016 Replacement Volume and 2025 Supplement)BY adding toArticle – AgricultureSection 15–101 through 15–103, 15–105, and 15–106Annotated Code of Maryland(2016 Replacement Volume and 2025 Supplement)PreambleWHEREAS, Scientific research and medical innovation are essential to protectingpublic health and advancing knowledge; andWHEREAS, The State has a compelling interest in ensuring that scientific researchand medical innovation are conducted in a manner that is ethical, responsible, andconsistent with evolving scientific standards; andWHEREAS, Advances in technology and methodology have increasingly madereducing, refining, or replacing the use of live animals in laboratory testing a possibility;andWHEREAS, The unnecessary or excessive use of animals in research underminespublic confidence and fails to reflect best practices in modern science; and–1–Ch. 230 2026 LAWS OF MARYLANDWHEREAS, It is the policy of the State to require that animal testing be employedonly when scientifically justified and when no reasonably available alternative methodsexist; andWHEREAS, When animal testing is necessary, it should be conducted using theminimum number of animals required and adhere to standards that prioritize humanetreatment and oversight; andWHEREAS, Establishing clear statutory standards for the necessity, minimization,and review of animal laboratory testing will promote scientific integrity, ethicalresponsibility, and public trust; now, therefore,SECTION 1. BE IT ENACTED BY THE GENERAL ASSEMBLY OF MARYLAND,That the Laws of Maryland read as follows:Article – AgricultureTitle 15. Research Facilities [that] AND TESTING FACILITIES THAT Use [Dogs or Cats]ANIMALS.15–101.(A) IN THIS TITLE THE FOLLOWING WORDS HAVE THE MEANINGSINDICATED.(B) (1)“ALTERNATIVE TEST METHOD” MEANS A TEST METHOD,INCLUDING A NEW OR REVISED METHOD, THAT:(I) DOES NOT USE LIVE VERTEBRATE ANIMALS;(II) PRODUCES INFORMATION OF EQUIVALENT OR BETTERSCIENTIFIC QUALITY AND RELEVANCE COMPARED TO TRADITIONAL ANIMAL TESTMETHODS; AND(III) HAS BEEN IDENTIFIED AND ACCEPTED FOR USE BY THEFEDERAL AGENCY OR PROGRAM WITHIN THE FEDERAL AGENCY RESPONSIBLE FORREGULATING THE SPECIFIC PRODUCT OR ACTIVITY FOR WHICH THE TEST IS BEINGCONDUCTED.(2) “ALTERNATIVE TEST METHOD” INCLUDES:(I) COMPUTATIONAL TOXICOLOGY AND BIOINFORMATICS;(II) HIGH–THROUGHPUT SCREENING METHODS;–2–WES MOORE, Governor Ch. 230(III) TESTING CATEGORIES OF CHEMICAL SUBSTANCES;(IV) TIERED TESTING METHODS;(V) IN VITRO STUDIES; AND(VI) SYSTEMS BIOLOGY.(C) (1) “BIOMEDICAL RESEARCH” MEANS:(I) THE INVESTIGATION OF THE BIOLOGICAL PROCESSES ANDCAUSES OF DISEASE; OR(II) RESEARCH CONDUCTED TO INCREASE FUNDAMENTALSCIENTIFIC KNOWLEDGE AND EXPAND THE UNDERSTANDING OF HOW PROCESSES INLIVING ORGANISMS DEVELOP AND FUNCTION.(2) “BIOMEDICAL RESEARCH” DOES NOT INCLUDE TESTING DONE TOASSESS THE SAFETY OR EFFICACY OF:(I) CHEMICAL SUBSTANCES;(II) INGREDIENTS;(III) DRUGS;(IV) VACCINES;(V) PRODUCTS; OR(VI) PRODUCT FORMULATIONS.(D) (C) “CHEMICAL SUBSTANCE” MEANS ANY ORGANIC OR INORGANICSUBSTANCE INCLUDING:(1) A DRUG, AS DEFINED IN 21 U.S.C. § 321(G);(2) (1) A PESTICIDE, AS DEFINED IN 7 U.S.C. § 136(U);(3) (2) A CHEMICAL SUBSTANCE, AS DEFINED IN 15 U.S.C. §2602(2); AND–3–Ch. 230 2026 LAWS OF MARYLAND(4) (3) A FOOD ADDITIVE, AS DEFINED IN 21 U.S.C. § 321(S).(D) (1) “MEDICAL RESEARCH” MEANS RESEARCH RELATED TO:(I) THE CAUSES, DIAGNOSIS, TREATMENT, CONTROL, ORPREVENTION OF PHYSICAL OR MENTAL DISEASES OR IMPAIRMENT IN HUMANS ORANIMALS; OR(II)THE DEVELOPMENT OF BIOMEDICAL PRODUCTS, MEDICALDEVICES, OR DRUGS AS DEFINED IN 21 U.S.C. § 321(G).(2) “MEDICAL RESEARCH” DOES NOT INCLUDE THE TESTING OF ANINGREDIENT THAT WAS FORMERLY USED AS A DRUG AND THAT IS NOW PROPOSEDFOR USE IN A PRODUCT OTHER THAN A BIOMEDICAL PRODUCT, MEDICAL DEVICE,OR DRUG.(E) (1)“RESEARCH FACILITY” MEANS ANY FACILITY IN THE STATE THATUSES LIVE VERTEBRATE ANIMALS FOR RESEARCH, EDUCATION, OREXPERIMENTATION.(2) “RESEARCH FACILITY” DOES NOT INCLUDE A PARTNERSHIP, ACORPORATION, AN ASSOCIATION, AN INSTITUTION, AN ORGANIZATION, OR ANYOTHER ENTITY IN THE STATE THAT PROVIDES ONLY BENEFICIAL SERVICES TO ANANIMAL SUCH AS SPAYING AND NEUTERING.(F) (1) “TESTING FACILITY” MEANS A PUBLIC OR PRIVATEPARTNERSHIP, CORPORATION, ASSOCIATION, ORGANIZATION, OR ANY OTHERENTITY IN THE STATE THAT USES LIVE VERTEBRATE ANIMALS FOR THE TESTING OF:(I) CHEMICAL SUBSTANCES;(II) INGREDIENTS;(III) DRUGS;(IV) VACCINES;(V) (III) PRODUCTS; OR(VI) (IV) PRODUCT FORMULATIONS.–4–WES MOORE, Governor Ch. 230(2) “TESTING FACILITY” INCLUDES A PARTNERSHIP, ACORPORATION, AN ASSOCIATION, AN ORGANIZATION, OR ANY OTHER ENTITY IN THESTATE THAT IS OWNED, LEASED, OR OPERATED BY A PUBLIC OR PRIVATE ENTITY.(3) “TESTING FACILITY” DOES NOT INCLUDE:(I)A PARTNERSHIP, A CORPORATION, AN ASSOCIATION, ANINSTITUTION, AN ORGANIZATION, OR ANY OTHER ENTITY IN THE STATE THATPROVIDES ONLY BENEFICIAL SERVICES TO AN ANIMAL SUCH AS SPAYING ANDNEUTERING; OR(II) A SCHOOL OR AN INSTITUTION OF HIGHER EDUCATION.(G) “TRADITIONAL ANIMAL TEST METHOD” MEANS A PROCESS, ANEXPERIMENT, OR A PROCEDURE THAT:(1) USES LIVE VERTEBRATE ANIMALS TO OBTAIN INFORMATION ONTHE CHARACTERISTICS OF A CHEMICAL SUBSTANCE, AN INGREDIENT, A DRUG, AVACCINE, A PRODUCT FORMULATION, OR A PRODUCT; AND(2)GENERATES INFORMATION REGARDING THE ABILITY OF THECHEMICAL SUBSTANCE, INGREDIENT, DRUG, VACCINE, PRODUCT FORMULATION, ORPRODUCT TO PRODUCE A SPECIFIC BIOLOGICAL EFFECT UNDER SPECIFIEDCONDITIONS.15–102.(A) A RESEARCH FACILITY OR TESTING FACILITY MAY NOT USE A DOG ORCAT THAT HAS UNDERGONE A DEVOCALIZATION SURGERY FOR RESEARCH ORTESTING PURPOSES.(B) A RESEARCH FACILITY OR TESTING FACILITY MAY NOT PERFORM ADEVOCALIZATION SURGERY ON A DOG OR CAT.(C) A DOG OR CAT AT A RESEARCH FACILITY OR TESTING FACILITY MAY BEEUTHANIZED ONLY BY A LETHAL INJECTION OF SODIUM PENTOBARBITALADMINISTERED IN ACCORDANCE WITH THE MOST CURRENT AMERICANVETERINARY MEDICAL ASSOCIATION GUIDELINES FOR THE EUTHANASIA OFANIMALS:(1) BY A VETERINARIAN LICENSED IN THE STATE; OR–5–Ch. 230 2026 LAWS OF MARYLAND(2)UNDER THE DIRECT OR INDIRECT SUPERVISION OF A LICENSEDVETERINARIAN LICENSED IN THE STATE.15–103.(A) THIS SECTION DOES NOT APPLY TO BIOMEDICAL MEDICAL RESEARCH.(B) (1) SUBJECT TO PARAGRAPH (3) OF THIS SUBSECTION, A TESTINGFACILITY MAY NOT USE A TRADITIONAL ANIMAL TEST METHOD IF THE AGENCYRESPONSIBLE FOR REGULATING THE SPECIFIC PRODUCT OR ACTIVITY FOR WHICHA TEST METHOD IS BEING USED HAS:(I) APPROVED AN ALTERNATIVE TEST METHOD; OR(II) MADE AVAILABLE TO OR GRANTED THE TESTING FACILITYA WAIVER FROM USING A TRADITIONAL ANIMAL TEST METHOD.(2)IF THERE IS NO ALTERNATIVE TEST METHOD AVAILABLE ORWAIVER MADE AVAILABLE OR GRANTED, A TESTING FACILITY MAY USE ATRADITIONAL ANIMAL TEST METHOD IF THE TESTING FACILITY USES THE FEWESTNUMBER OF ANIMALS POSSIBLE AND MINIMIZES THE LEVEL OF PAIN, SUFFERING,AND STRESS OF AN ANIMAL USED FOR TESTING.(3) NOTHING IN THIS SUBSECTION MAY BE CONSTRUED TO PROHIBIT:(I) THE USE OF A TRADITIONAL ANIMAL TEST METHOD TOCOMPLY WITH FEDERAL OR STATE REQUIREMENTS IF THE APPROPRIATE FEDERALOR STATE AGENCY HAS APPROVED THE USE OF AN ALTERNATIVE TEST METHOD BUTDETERMINED THAT THE ALTERNATIVE TEST METHOD DOES NOT ENSURE THEHEALTH OR SAFETY OF THE PUBLIC OR THE ENVIRONMENT; OR(II) THE CONTINUED USE OF A TRADITIONAL ANIMAL TESTMETHOD THAT:1. WAS INITIATED:A. BEFORE OCTOBER 1, 2026; ORB.WITHIN 180 DAYS AFTER OCTOBER 1, 2026,FOLLOWING AGENCY APPROVAL OF AN ALTERNATIVE TEST METHOD OR STRATEGY;AND–6–WES MOORE, Governor Ch. 2302. IS USED ONLY TO COMPLETE THE TEST FOR WHICH ITWAS STARTED.[15–101.] 15–104.(a) (1) In this section the following words have the meanings indicated.(2) “Animal rescue organization” includes:(i) A nonprofit organization incorporated for the purpose of rescuinganimals in need and finding permanent adoptive homes for the animals; and(ii) A government–operated animal control unit that providesanimals for adoption.(3) [“Research facility” includes:(i) A higher education research facility;(ii) A scientific research facility;(iii) A medical research facility; and(iv) A product testing facility.(4)] “Scientific research purposes” includes:(i) Investigation;(ii) Experimentation;(iii) Instruction; and(iv) Testing.(b) This section applies to a dog or cat that, in the determination of an attendingveterinarian, is suitable for adoption.(c) A research facility OR TESTING FACILITY located in the State in which dogsor cats are used for scientific research purposes shall take reasonable steps to provide forthe adoption of a dog or cat that, in the determination of the research facility OR TESTINGFACILITY, is no longer needed for scientific research purposes by:(1) Establishing a private placement process to provide for the adoption ofa dog or cat;–7–Ch. 230 2026 LAWS OF MARYLAND(2) Establishing a list of animal rescue organizations that are approved bythe research facility OR TESTING FACILITY and are willing to take a dog or cat from theresearch facility OR TESTING FACILITY; and(3) Offering the dog or cat to the animal rescue organizations identified inthe list established under item (2) of this subsection if the research facility OR TESTINGFACILITY is unable to place the dog or cat through its private placement process.(d) A research facility OR TESTING FACILITY may enter into a collaborativeagreement with an animal rescue organization for the purpose of carrying out theprovisions of this section.15–105.(A)ON OR BEFORE JANUARY 31 DECEMBER 1, 2028, AND EACH JANUARY31 DECEMBER 1 THEREAFTER, EACH TESTING FACILITY SHALL SUBMIT TO THESECRETARY THE FOLLOWING INFORMATION REGARDING THE IMMEDIATELYPRECEDING 12–MONTH PERIOD FISCAL YEAR:(1)THE NUMBER OF EACH SPECIES OF ANIMALS OWNED AND USED BYTHE TESTING FACILITY;(2)THE NUMBER OF DOGS OR CATS RELEASED TO ANIMAL RESCUEORGANIZATIONS UNDER § 15–104 OF THIS TITLE AND THE NAMES OF THE ANIMALRESCUE ORGANIZATIONS TO WHICH THE DOGS OR CATS WERE RELEASED;(3)THE TYPE AND NUMBER OF ALTERNATIVE TEST METHODS ANDTRADITIONAL ANIMAL TEST METHODS USED;(4) THE NUMBER OF TRADITIONAL ANIMAL TEST METHOD WAIVERSUSED; AND(5)THE PURPOSE OF ANY TESTS CONDUCTED USING ALTERNATIVETEST METHODS OR TRADITIONAL ANIMAL TEST METHODS.(B) ON OR BEFORE JANUARY 31 DECEMBER 1, 2028, AND EACH JANUARY31 DECEMBER 1 THEREAFTER, EACH RESEARCH FACILITY USING OR KEEPING DOGSOR CATS SHALL SUBMIT TO THE SECRETARY, FOR THE IMMEDIATELY PRECEDING12–MONTH PERIOD FISCAL YEAR, THE NUMBER OF DOGS OR CATS RELEASED TOANIMAL RESCUE ORGANIZATIONS UNDER § 15–104 OF THIS TITLE AND THE NAMESOF THE ANIMAL RESCUE ORGANIZATIONS TO WHICH THE DOGS OR CATS WERERELEASED.–8–WES MOORE, Governor Ch. 230(C) THE SECRETARY SHALL:(1)PREPARE AN ANNUAL REPORT AGGREGATING THE INFORMATIONSUBMITTED UNDER THIS SECTION IN AN ANONYMIZED MANNER; AND(2) POST THE ANNUAL REPORT ON THE DEPARTMENT’S WEBSITE.(D) A REPORT MADE TO THE SECRETARY UNDER THIS SECTION IS NOTSUBJECT TO DISCLOSURE UNDER THE MARYLAND PUBLIC INFORMATION ACT.15–106.A RESEARCH FACILITY OR TESTING FACILITY THAT VIOLATES THIS TITLE ISSUBJECT TO:(1) FOR A FIRST OFFENSE, A FINE NOT EXCEEDING $1,000; AND(2) FOR A SECOND OR SUBSEQUENT OFFENSE, A FINE NOTEXCEEDING $5,000.SECTION 2. AND BE IT FURTHER ENACTED, That this Act shall take effectOctober 1, 2026.Approved by the Governor, April 28, 2026.–9–
Prohibiting a research facility or a testing facility from using certain dogs and cats for research or testing purposes; prohibiting a research facility or testing facility from performing devocalization procedures on dogs or cats; prohibiting a testing facility from using traditional animal test methods under certain circumstances; applying certain provisions of law regarding the adoption of dogs and cats used for scientific research purposes to testing facilities; etc.
Sponsors
Sen. Benjamin Kramer (D) sponsors SB 423 alone.
Committees
SB 423 went before 2 committees: Education, Energy, and the Environment and Environment and Transportation.

History
SB 423 has taken 13 actions since Jan 30, 2026, the latest on Apr 28, 2026.
| Chamber | Action | |||
|---|---|---|---|---|
Apr 28, 2026 | Senate | Approved by the Governor - Chapter 230 | ||
Apr 13, 2026 | House | Third Reading Passed (122-13) | ||
Apr 13, 2026 | Senate | Returned Passed | ||
Apr 9, 2026 | House | Favorable Adopted Second Reading Passed | ||
Apr 8, 2026 | House | Favorable Report by Environment and Transportation |
Votes
SB 423 went to 2 roll calls across both chambers, the latest on Apr 13, 2026 at 122–13.
| Chamber | Question | Yea | Nay | |||
|---|---|---|---|---|---|---|
Apr 13, 2026 | House | Third Reading Passed | 122 | 13 | ||
Mar 19, 2026 | Senate | Third Reading Passed | 45 | 0 |
Source: mgaleg.maryland.gov · legiscan.com