The following counties are deemed to be within the 40 psf roof load zone: Washington, Hancock, Aroostook, Somerset, Waldo, Franklin, Penobscot, Oxford and Piscataquis.
The following counties are deemed to be within the 30 psf roof load zone: York, Cumberland, Kennebec, Sagadahoc, Knox, Lincoln, and Androscoggin.
02-385 C.M.R. ch. 890, § J-A-I