ZONE I
Billerica
Gardner
Tewksbury
ZONE II
Acton
Andover
Ashburnham
Ashby
Athol
Ayer
Bedford
Burlington
Carlisle
Chelmsford
Dracut
Fitchburg
Harvard
Hubbardston
Lancaster
Lawrence
Leominster
Littleton
Lowell
Lunenburg
Medfield
Methuen
North Reading
Pepperell
Reading
Shirley
Sherborn
Tyngsborough
Wilberham
Winchendon
Wilmington
Winchester
Woburn
ZONE III
Abington
Acushnet
Amesbury
Arlington
Attleboro
Auburn
Avon
Barnstable
Bellingham
Belmont
Berlin
Beverly
Blackstone
Bolton
Boston
Boxborough
Boxford
Boylston
Braintree
Brockton
Brookline
Cambridge
Canton
Carver
Chelsea
Clinton
Concord
Danvers
Dedham
Dunstable
Everett
Framingham
Franklin
Georgetown
Gloucester
Grafton
Haverhill
Holliston
Lexington
Lynn
Lynnfield
Malden
Manchester-by-the-Sea
Marblehead
Marlborough
Maynard
Medford
Medway
Melrose
Merrimac
Middleton
Milford
Millbury
Newbury
Newburyport
Newton
North Andover
Northborough
Norwell
Peabody
Quincy
Randolph
Raynham
Revere
Rockport
Salem
Salisbury
Saugus
Scituate
Sharon
Shrewsbury
Somerville
Southbridge
Sudbury
Swampscott
Swansea
Templeton
Topsfield
Townsend
Upton
Uxbridge
Wakefield
Walpole
Waltham
Watertown
Wayland
Webster
Wellesley
Westborough
Westford
Weston
Winthrop
Worcester
Wrentham