More pertinent information from the link you provided as follows:

What States are covered by the NVRA’s requirements?
The requirements of the NVRA apply to 44 States and the District of Columbia. Six States (Idaho, Minnesota, New Hampshire, North Dakota, Wisconsin, and Wyoming are exempt from the NVRA because, on and after August 1, 1994, they either had no voter-registration requirements or had election-day voter registration at polling places with respect to elections for federal office. Likewise, the territories are not covered by the NVRA (Puerto Rico, Guam, Virgin Islands, American Samoa)