If you really want to get your britches in a bunch...
You can't get an AFL in WA right now, because it also requires a background check, and the FBI will not share background information with non-LE sources (such as the Department of Licensing, who issues AFL's);
WA State Licensing: Alien Firearms License
Special alert for alien firearms license applicants
We are unable to issue alien firearms licenses at this time. The Federal Bureau of Investigation (FBI) has told law enforcement agencies it is against federal law to use federal databases for background checks if the law enforcement agencies share the results with a non-criminal justice agency such as the Department of Licensing. This means law enforcement agencies cannot perform the background checks required by state law for issuing an alien firearms license. Without these background checks, we cannot complete the application process or issue alien firearms licenses.