(b) Nonapplicability to certain States This subchapter does not apply to a State described in either or both of the following paragraphs:

(1) A State in which, under law that is in effect continuously on and after August 1, 1994, there is no voter registration requirement for any voter in the State with respect to an election for Federal office.

(2) A State in which, under law that is in effect continuously on and after August 1, 1994, or that was enacted on or prior to August 1, 1994, and by its terms is to come into effect upon the enactment of this subchapter, so long as that law remains in effect, all voters in the State may register to vote at the polling place at the time of voting in a general election for Federal office.

See http://www.law.cornell.edu/uscode/42/usc_sec_42_00001973--gg002-.html

-- Raymond Lutz - 02 Oct 2006