Question

which piece of legislation regulates how resources in national forests are managed?
endangered species act
multiple use sustained yield act

Explanation:

The Endangered Species Act focuses on protecting threatened/endangered species and their habitats, not broad national forest resource management. The Multiple Use Sustained Yield Act specifically mandates that national forests be managed for multiple uses (timber, recreation, wildlife, water) while ensuring sustainable resource yields.

Answer:

Multiple Use Sustained Yield Act