Semi-annual inspection of a site where animals are held in captivity is required under the animal welfare act if the animals are held:

The correct answer is:

Under captive or laboratory conditions.

Explanation:

According to the animal and welfare act signed in August 1966, the animal protection should be guaranteed through the Institutional Animal Care and Use Committee IACUC. This committee is composed by professional experts in the knowledge of animal care, such as Doctors of Veterinary Medicine who can help checking or determining the appropriate conditions for animals in research or laboratory conditions.

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