BILLINGS, Mont. (AP) — Bison from Yellowstone National Park would be allowed to remain year-round in new areas of Montana if their numbers were reduced below recent levels, according to a proposal up for a Tuesday vote by the state Board of Livestock.

The proposal would allow bison, also known as buffalo, to roam year-round across more than 400,000 acres outside the park whenever the population tallies 3,300 or fewer animals. That includes some areas without any bison now, such as the Taylor Fork of the Gallatin River and other locations where the animals previously have been allowed only during winter.