How can canadian RN apply in washington state

Here ya go!
http://www.doh.wa.gov/hsqa/Professio...s/RN_byEnd.pdf

page 5 will give you the specifics for international licensure.

I am also from Toronto and now working in the US with a WA state license. Here are the steps you need to do:

1. Retrieve application from Dept of Health WA
2. Register for NCLEX RN with Pearson Vue (after you have been approved to take it)
3. Take the NCLEX RN at a designated facility and of course pass it

Once all is done...you should be licensed to practice.

Best of Luck!