Since Washington State does not require proof of a government sanctioned class, and is a 'shall issue' state, you may find that any classes offered vary.
The Concealed Pistol License is a Washington State License administered by County for un-incorporated areas, and Cities for those residing in a city.
I am not sure where you live, but your WA posty indicated that you used to live in UP by Tacoma.
Pierce County Sheriff's office handles this area. $52.50 for an original license.
I am not aware of classes,
Check the following.
Gun Ranges, Staff and their bulletin boards.
Local Gun Shop(s)