The commercial apple-producing districts of the Commonwealth are as follows: Area I. Northern Virginia District — Clarke, Fairfax, Frederick, and Loudoun Counties and the City of Winchester. Area II. Central Virginia District — Accomack, Fauquier, King William, Lancaster, Madison, Middlesex, Northampton, Northumberland, Orange, Page, Rappahannock, Richmond, Rockingham, Shenandoah, Warren, and Westmoreland Counties. Area III. Southern Virginia District — Albemarle, Amherst, Augusta, Bedford, Botetourt, Buckingham, Campbell, Carroll, Charlotte, Dickenson, Franklin, Floyd, Giles, Grayson, Halifax, Hanover, Henry, Isle of Wight, James City, Lee, Louisa, Lunenburg, Montgomery, Nelson, Nottoway, Patrick, Pittsylvania, Prince Edward, Pulaski, Roanoke, Rockbridge, Russell, Smyth, Southampton, Surry, Wise, and Wythe Counties. Whenever the commercial production of apples begins in any locality not included in this section, such locality shall become a part of the nearest district that has the lowest commercial apple production according to production records of the Department.