Limitation. The Department may sell trees and seedlings produced at the Maryland Forest Tree Nursery only for conservation purposes. Requirements. A representative of the Department shall develop a tree-planting plan and examine the planting site of trees planted for conservation purposes. Windbreaks, other than those placed to protect cropland soil from wind erosion, and sound barriers shall be at least four rows of trees wide, and the individual rows of trees shall be staggered. All trees and tree seedlings, cuttings, and wildlife shrubs shall be planted in the State, unless exempted by the Secretary. All trees for roadside planting shall be planted on public road rights-of-way or other public lands. A tree-planting plan shall be developed by a representative of the Department before the trees are allocated. A report of the planting shall be furnished by the planter when requested by the Department. The planting shall be protected as far as possible from fire, grazing, and trespass. Trees may not be sold or offered for sale with the roots attached for removal from the land as live or ornamental trees.