I am not really sure about the English proficiency requirement once you are already residing in WA but in my case, when I emailed the WA BON they instructed me that it is a must to take the TOEFL exam since the main language in Phil is Tagalog. With regards to concurrency issue, I'm sorry to say that as of the moment I am having trouble clarifying the said issue. I'm stuck with CGFNS registration because I am still waiting for the answer to my question. I don't want to waste $350 only to be rejected because of the concurrency issue.