General.

(1) Journey level and specialty plumber original trainee certificates:

The department will issue an original trainee certificate when the trainee applicant submits a complete trainee certificate application including:

(a) Date of birth, mailing address, Social Security number; and

(b) All appropriate fees as listed in WAC 296-400A-045.

(c) If an individual has previously held a plumbing trainee certificate, then that individual is not eligible for a subsequent original trainee certificate.

(d) All applicants for a plumbing trainee certificate must be at least sixteen years of age and must follow requirements as defined in WAC 296-125-030.

(2) Renewal.

(a) The department issues separate trainee certificates once a year.

(b) The plumbing trainee may not apply for renewal more than ninety days prior to the expiration date. Plumber trainee certificates are valid for one year.

(i) Submit a complete renewal application;

(ii) Pay all appropriate fees; and

(iii) Completed the continuing education requirements described in chapter 296-400A WAC. Backflow trainees are exempt from continuing education requirements.

(d) If an individual files inaccurate or false evidence of continuing education information when renewing a plumbing trainee certificate, the individual's certificate may be suspended or revoked.

(e) An individual who has not completed the required hours of continuing education can renew a trainee certificate; however, the training certificate will be placed in an inactive status. The inactive training certificate will be returned to active status upon validation by the department of the required continuing education.

(f) If continuing education hours have not been met, trainee certificates will become expired/inactive and any plumbing work experience obtained by the trainee in expired/inactive status will not be credited.

(g) An individual may not renew a revoked trainee certificate.

(h) Apprentices registered in an approved program according to chapter 49.04 RCW who are obtaining classroom training consistent with the continuing education requirements under chapter 18.106 RCW and this chapter, as approved by the department, are deemed to have met the continuing education requirements necessary to renew a trainee certificate. Included under this exemption are active trainees that are not in the formal approved program according to chapter 49.04 RCW but are attending all hours of required classroom training along with the apprentices and meeting the work experience as required under chapter 18.106 RCW and this chapter. The plumber craft training school will be required to supply the department the necessary documentation to prove there was full hourly attendance of these trainees as is required of the apprentices while they attend the classroom training.

(i) The trainee will not be issued a renewal or reinstated training certificate if the individual owes the department money as a result of an outstanding final judgment.

(3) Ratio/supervision.

(a) Commercial/residential.

(i) A certified residential specialty plumber, residential service plumber, or domestic pump specialty plumber working on a commercial job site may work as a journey level trainee only if they have a current trainee certificate on their person while performing commercial plumbing work.

(ii) On a job site, the ratio of certified plumbers to plumber trainees must be:

(A) Until December 31, 2025:

(I) No more than three trainees working on any one residential structure job site for every certified specialty plumber or journey level plumber working as a specialty plumber;

(II) No more than one trainee working on any one job site for every certified journey level plumber working as a journey level plumber; and

(III) No more than one trainee working on any one job site for every certified residential service.

(B) After December 31, 2025, no more than two trainees may work on any residential structure job site for every certified specialty plumber or journey level plumber working as a specialty plumber.

(iii) Supervision must be a minimum of seventy-five percent of the time spent on each and every job site.

(b) Domestic pump.

One appropriate domestic pump specialty plumber or one journey level plumber working on a domestic pump system may supervise no more than three trainees, after December 31, 2025, no more than two trainees can be supervised. Supervision must be a minimum of seventy-five percent of the time spent on each and every job site.

A plumber trainee or specialty plumber who has a current trainee certificate with the state of Washington and has successfully completed or is enrolled in an approved medical gas piping installer training course may work on medical gas piping systems. Work may only occur when there is direct supervision by an active Washington state certified journey level plumber with an active medical gas piping installer endorsement issued by the department. Supervision must be one hundred percent of the time spent on each and every job site on a one-to-one ratio.

(d) Backflow.

A backflow specialty plumber, a journey level plumber on a commercial job site, or a residential specialty plumber on a residential job site must supervise one backflow trainee to perform maintenance and repair work on every backflow assembly on potable water systems inside every commercial or residential building. The ratio must be one to one for one hundred percent of the time on each and every job site.

(4) Affidavits of experience.

(a) At the time of renewal, the holder must provide the department with an accurate list of the holder's employers in the plumbing construction industry for the previous annual period. The individual must submit a completed, signed, and notarized affidavit(s) of experience. The affidavit of experience must accurately attest to:

(i) The plumbing installation work performed for each employer the individual worked for in the plumbing trade during the previous period;

(ii) The correct plumbing category the individual worked in; and

(iii) The actual number of hours worked in each category, worked under the proper supervision of a Washington certified journey level plumber, certified domestic pump specialty plumber, or residential specialty plumber.

(b) The trainee should ask each employer and/or apprenticeship-training director for an accurately completed, signed, and notarized affidavit of experience for the previous certification period. The employer(s) or apprenticeship training director(s) must provide the previous period's affidavit of experience to the individual within twenty days of the request.

(c) Plumbing hours for previous years are to be submitted within thirty days after the renewal date of the plumbing training certificate; failure to submit within thirty days is a violation of chapter 18.106 RCW. The individual may not receive credit for these previous plumbing hours and will result in nonrenewal of the trainee certificate and subject to an infraction under RCW 18.106.320. See RCW 18.106.070(2).

(d) Trainee hours will not be credited if the trainee owes outstanding penalties for violations of this chapter.

(e) Trainee hours will not be credited during periods of time when the trainee card is expired or inactive.

PDFWAC 296-400A-120

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