# Maryland HB 0666: Research Facilities and Testing Facilities That Use Animals - Prohibitions and Adoption Requirements (Animal Research Modernization and Best Practices Act of 2026)

Maryland HB 0666, Research Facilities and Testing Facilities That Use Animals - Prohibitions and Adoption Requirements (Animal Research Modernization and Best Practices Act of 2026), is a 2026 Regular Session House bill sponsored by Bonnie Cullison (Democratic); status failed, last action 2026-04-13 (Rereferred to Education, Energy, and the Environment) (as of 2026-10-17).

- Canonical: https://policyrisk.com/state-bill/MD-HB0666-2026RS
- As of: 2026-10-17
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Bill: Maryland HB 0666
- State: Maryland
- Session: 2026 Regular Session
- Title: Research Facilities and Testing Facilities That Use Animals - Prohibitions and Adoption Requirements (Animal Research Modernization and Best Practices Act of 2026)
- Status: failed
- Chamber: House
- Introduced: 2026-01-30
- Last action: 2026-04-13, Rereferred to Education, Energy, and the Environment
- Sponsor: Bonnie Cullison (Democratic)
- Cosponsors: 11
- Subjects: Agriculture, Adoption - see also- FamLaw; FosterCare; ParentsGuardians, Agriculture, Department of, Agriculture -see also- Agritourism; Cannabis Prd; Farm; etc., Animals -see also- Birds; Dogs; Domestic An; Horses; Livestk, Animal Shelters and Rescues, Associations -see also- Cooperative Associations, Biotechnology, Chemical Tests, Corporations -see also- Municipal Corps; Public Corps & Inst, Death -see also- Homicide; Murder; Wrongful Death, Disclosure, Dogs, Drugs -see also- Cannabis; ControlDangSubst; Pharm; etc., Education -see also- ContEd; DrvEd; HigherEd; etc., Electronic Government, Ethics, Fines -see also- Penalties and Sentences, Hazardous and Toxic Substances -see also- Asbestos; Radiatn, Health -see also- COVID19; EnvHlth; MedCon; etc., Immunization, Internet -see also- Internet Access, Laboratories, Medical Research, Medical Testing and Diagnosis, Partnerships, Penalties and Sentences -see also- Death Penalty, Privacy, Reports, Scientific Research -see also- ChemTst; MedRsrch; Studies, Standards and Best Practices, Time, Veterinarians, Waivers
- Touches household money: no
- Roll calls: 1 (121 yes, 13 no in all)
- Economic provisions PRIA read: 0

## Summary

No summary available.

## Bill overview

No economic impacts identified for this bill.

## Sponsors and cosponsors

- Sponsor: Bonnie Cullison (Democratic), House
- Cosponsor: Nick Allen (Democratic), House
- Cosponsor: Dylan Behler (Democratic), House
- Cosponsor: Linda Foley (Democratic), House
- Cosponsor: Michele Guyton (Democratic), House
- Cosponsor: Anne Healey (Democratic), House
- Cosponsor: Marvin E. Holmes (Democratic), House
- Cosponsor: Robbyn Lewis (Democratic), House
- Cosponsor: Darrell Odom (Democratic), House
- Cosponsor: Dana Stein (Democratic), House
- Cosponsor: Todd B. Morgan (Republican), House
- Cosponsor: Natalie Ziegler (Democratic), House

## Roll call votes

| Date | Chamber | Motion | Result | Yes | No | Other |
| --- | --- | --- | --- | --- | --- | --- |
| 2026-04-09 | House | Third Reading Passed | pass | 121 | 13 | 2 |

## Actions (8)

- 2026-04-13: Rereferred to Education, Energy, and the Environment (Senate)
- 2026-04-10: Referred Rules (Senate)
- 2026-04-09: Third Reading Passed (121-13) (House)
- 2026-04-09: Second Reading Passed with Amendments (House)
- 2026-04-09: Favorable with Amendments {443523/1 Adopted (House)
- 2026-04-08: Favorable with Amendments Report by Environment and Transportation (House)
- 2026-02-02: Hearing 2/18 at 1:00 p.m. (House)
- 2026-01-30: First Reading Environment and Transportation (House)

## Bill text

- Third Reading, 2026-04-09: [PDF](https://mgaleg.maryland.gov/2026RS/bills/hb/hb0666t.pdf)
- First Reading, 2026-01-30: [PDF](https://mgaleg.maryland.gov/2026RS/bills/hb/hb0666f.pdf)

## Related bills

- SB 0496: Maryland Medical Assistance Program - Coverage for the Treatment of Obesity - Authorization (became law)
- SB 0366: Motor Vehicles - Intelligent Speed Assistance System Pilot Program - Establishment (became law)
- SB 0244: Code Revision - Health - Maryland Medical Assistance Program (became law)
- SB 0148: Income Tax - Credit for 9-1-1 Specialist Retirement Income (Supporting Our 9-1-1 Specialists Act) (became law)
- SB 0016: Child Support - Earnings Withholdings Limits (became law)
- HB 0529: Code Revision - Health - Maryland Medical Assistance Program (became law)

## Sources
- [Third Reading (PDF)](https://mgaleg.maryland.gov/2026RS/bills/hb/hb0666t.pdf)
- [First Reading (PDF)](https://mgaleg.maryland.gov/2026RS/bills/hb/hb0666f.pdf)

## Related
- [SB 0496: Maryland Medical Assistance Program - Coverage for the Treatment of Obesity - A…](https://policyrisk.com/state-bill/MD-SB0496-2026RS)
- [SB 0366: Motor Vehicles - Intelligent Speed Assistance System Pilot Program - Establishm…](https://policyrisk.com/state-bill/MD-SB0366-2026RS)
- [SB 0244: Code Revision - Health - Maryland Medical Assistance Program](https://policyrisk.com/state-bill/MD-SB0244-2026RS)
- [SB 0148: Income Tax - Credit for 9-1-1 Specialist Retirement Income (Supporting Our 9-1-…](https://policyrisk.com/state-bill/MD-SB0148-2026RS)
- [SB 0016: Child Support - Earnings Withholdings Limits](https://policyrisk.com/state-bill/MD-SB0016-2026RS)
- [HB 0529: Code Revision - Health - Maryland Medical Assistance Program](https://policyrisk.com/state-bill/MD-HB0529-2026RS)
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Source: PRIA, https://policyrisk.com/state-bill/MD-HB0666-2026RS (as of 2026-10-17).