Several organizations in the U.S. provide guidelines on how animals should be raised to maximize animal welfare and protect the environment. Some of them also offer certification -- and the use of their logo -- to farmers who can prove they follow those guidelines.

The three primary farm animal welfare programs are Certified Raised and Handled, American Humane, and Animal Welfare Approved.

Guidelines can range from how the animals are fed and sheltered to how they are transported or slaughtered. Some (e.g., Food Alliance) also include guidelines on how animals are grazed or how streams and ponds are buffered from runoff.

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