State Agency
	October 200?, narrow dies Picture from Dave Hoag Word has it that these plates are coded to reflect the agency that the plate belongs to. So far, I have only seen T series plates.
	April 2011, narrow dies, new style sticker Picture from Dave Hoag As you can see, these are dated pretty far in advance.
	Undated, narrow dies Collection of the author I think the zero is a letter O on this plate.
	Undated, narrow dies Private ALPCA collection No space inserted in this series block.
	October 2008, narrow dies, new style sticker Picture from Dave Hoag
	August 2011, narrow dies, new style sticker Photographed in use
	December 2009, narrow dies, new style sticker Photographed in use I haven't seen enough of these plates to know what series blocks do and don't have the space. All I know is that it seems to be inconsistent, much like Special Purpose Truck plates, which isn't all that surprising.
	Undated, narrow dies Jeff Fortier collection, photographed at Webster MA plate meet I have never a State Agency Trailer plate in use. Not sure if this is just a test, or if they really exist. The spacing is a little off on this particular plate.
	Undated, narrow dies Private ALPCA collection This is definitely some kind of error plate. It is in the regular passenger format with the State Agency caption.