Zone.

Zone. A defined geographic land area identifiable by geological, political, manmade, or surveyed boundaries, with mechanisms of disease spread, epidemiological characteristics, and the ability to control the movement of animals across the boundaries of the zone taken into account.

Source

9 CFR § 77.2

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Scoping language

As used in this part, the following terms shall have the meanings set forth in this section except as otherwise specified.

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