SD 1434 Massachusetts Senate · 194th Legislature (2025-2026)

An Act to protect nonhuman primate infants in research institutions and product testing facilities

This bill (SD 1434) prohibits research institutions and product testing facilities in Massachusetts from separating infant nonhuman primates (NHPs) from their biological mothers for research, experimentation, or product testing. The rule applies to all infant NHPs (e.g., monkeys) during their first 12 months of life, with exceptions only for immediate medical necessity to protect the health of either the infant or mother. Facilities must minimize distress during any temporary separation and reunite mothers and infants as quickly as possible unless medical care requires delay. The law requires the Massachusetts Department of Public Health to create implementing regulations within 90 days of the bill’s passage.
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