From Guns.com:

Washington Secretary of State Kim Wyman certified the I-1639 “Gun Violence Prevention” ballot referendum for the November General Election after examining a random sample of 11,380 of the 378,085 signatures submitted by its sponsors. Wyman, a Republican, cautioned that “concerns remain” about the whether the format of the petition signature sheets complies with statutory requirements — as previously questioned by the gun rights groups — but said the initiative could move forward.