Ripping Enviropaks to Become New Standard for All Mouse Cages Effective January 1
Effective January 1, 2026, the Animal Care & Use Program will require that Enviropaks – the standard nesting material used in all mouse cages – be ripped into two pieces at the creation or transfer of animals to a new cage. The Unit for Laboratory Animal Medicine (ULAM), as well as many laboratories, already perform ...











