The U.S. Forest Service is offering $5 tree permits for people who would like to cut their Christmas trees in the Green Mountain National Forest.

The Forest Service’s Vermont office said that in recent years the Green Mountain National Forest program has continued to grow in popularity. Last year, 431 permits were sold.

The permits can be purchased at Forest Service offices in Rutland, Middlebury, Manchester Center or Rochester.

The permit must be attached to the tree before it’s transported, and it’s up to the permit holder to know the boundaries of the National Forest.

Trees over 20 feet tall cannot be cut, and the stump left after the cutting must be less than 6 inches high.