"Arborist" or "urban forester" means a person trained in arboriculture, forestry, landscape architecture, horticulture, or related fields and experienced in the conservation and preservation of native and ornamental trees.
"Heritage tree" means any tree that has been individually designated by the local governing body to have notable historic or cultural interest.
"Memorial tree" means any tree that has been individually designated by the local governing body to be a special commemorating memorial.
"Specimen tree" means any tree that has been individually designated by the local governing body to be notable by virtue of its outstanding size and quality for its particular species.
"Street tree" means any tree that has been individually designated by the local governing body and which grows in the street right-of-way or on private property as authorized by the owner and placed or planted there by the local government.
The designation of such trees shall be by an arborist or urban forester and shall be made by ordinance. The individual property owner of such trees shall be notified prior to the hearing on the adoption of such ordinance by certified mail.
Va. Code § 10.1-1127.1