The Washington Application for Plumber Examination, Reciprocal, Medical Gas Endorsement, or Temporary Permit is an online application process that allows individuals to apply for certification in the plumbing trade in the state of Washington. It includes applications for Plumber Examination, Reciprocal Certification, Medical Gas Endorsement, and Temporary Permit. The Plumber Examination application can be used to apply for a plumbing journeyman or master plumber license. Applicants must fill out the form and submit it with the applicable fees to the Washington State Department of Labor and Industries. The exam fee is $90 and the license fee is $90. The Reciprocal Certification application can be used to apply for a plumbing journeyman or master plumber license if the applicant has already been certified in another state. Applicants must fill out the form and submit it with the applicable fees to the Washington State Department of Labor and Industries. The fee is $90. The Medical Gas Endorsement application can be used to apply for an endorsement to the existing plumbing license. It requires the applicant to complete a four-hour course, pass the written exam and submit the application with the applicable fees to the Washington State Department of Labor and Industries. The fee is $90. The Temporary Permit application can be used to apply for a short-term plumbing permit. It requires the applicant to fill out the form and submit it with the applicable fees to the Washington State Department of Labor and Industries. The fee is $90.