From the local Whidbey News-Times in Washington:

A proposed bill would allow the residential address portion of a voter registration form to be filled out with a nontraditional address. Democrat majority caucus chair, Sen. John McCoy, D-Tulalip, pre-filed SB 5079, titled The Native American voting rights act of Washington.

According to that article:

The bill modifies the minimum information required for voter registration under state law, to allow for “unmarked homes” and “a nontraditional residential address may be used when a voter resides on an Indian reservation or on Indian lands.”

Read the full article here.