New York also has a similar law on the books, due to take effect with the 2010 model year. California’s law will apply to model year 2009.
According to the DEP press release, a very interesting detail I was not aware of. “State law requires Massachusetts to update its emissions program to conform to California’s, as long as it is stricter than federal standards.” And sure enough, there it is in the MGL, chapter 111, section 142k.
[T]he department of environmental protection, hereinafter referred to as the department, shall adopt motor vehicle emissions standards based on the California’s duly promulgated motor vehicle emissions standards of the state of California unless, after a public hearing, the department establishes, based on substantial evidence, that said emissions standards and a compliance program similar to the state of California’s will not achieve, in the aggregate, greater motor vehicle pollution reductions than the federal standards and compliance program for any such model year.
Presumably that is the basis for this hearing. California is adopting this new sticker, and so the department must decide whether this sticker will “achieve, in the aggregate, greater motor vehicle pollution reductions than the federal standards.” The Massachusetts proposal would apply to model year 2010 and later. The hearing will be held at MassDEP on December 10, and written comments can be made until December 22.