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Bill

HB 666

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

2026 Regular Session Introduced by Nick Allen and 11 co-sponsors

Maryland bill prohibits certain animal research practices and mandates adoption of lab animals post-research, modernizing facility standards and animal welfare requirements.

Rereferred to Education, Energy, and the Environment
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Bill Summary · HB 666

Legislative bill overview

HB 666 establishes new regulations for research and testing facilities in Maryland that use animals, imposing prohibitions on certain practices and requiring adoption of animals after research completion. The bill appears designed to modernize animal research standards and ensure humane treatment of laboratory animals through mandatory rehoming programs.

Why is this important

Animal research facilities significantly impact both scientific advancement and animal welfare standards. These requirements would directly affect how Maryland-based research institutions (universities, pharmaceutical companies, contract research organizations) conduct studies, potentially increasing operational costs while setting precedent for other states. The adoption mandate represents a shift toward requiring responsibility for animal welfare beyond the research period.

Potential points of contention

  • Research competitiveness and costs: Stricter requirements and adoption responsibilities may increase operational expenses, potentially making Maryland facilities less attractive to researchers or funding compared to less-regulated states
  • Definition and scope of prohibitions: The bill's specific prohibitions aren't detailed in this summary, but disputes likely center on which research types are banned versus permitted, affecting different scientific fields differently
  • Implementation burden: Establishing and maintaining adoption infrastructure for research animals (particularly rodents used in high volumes) presents logistical and financial challenges that may be underestimated
  • Scientific necessity versus welfare: Tension between researchers arguing certain animal models are essential for medical breakthroughs and animal advocates seeking maximum restrictions

Compiled from official sources — confirm details with the bill’s official record.

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