52.1078—Extensions.
(b)
The Administrator hereby extends by six-months the deadline by which Maryland must incorporate mandatory testing of second generation On-board Diagnostics (OBD-II) equipped motor vehicles as part of its inspection and maintenance (I/M) program. As a result of this deadline extension, Maryland must now incorporate mandatory OBD-II checks (for 1996-and-newer OBD-II equipped vehicles) as an element of the Commonwealth's I/M program in all enhanced I/M program areas by July 1, 2002.