47. A person whose stationary engineman’s certificate issued under the Regulation respecting stationary enginemen (chapter M-6, r. 1), certificate of competency issued under the Order respecting certificates of competency with respect to gas (R.R.Q., 1981, c. D-10, r. 2) or Class A or B inspector’s qualification certificate issued under the Regulation respecting pressure vessels (chapter A-20.01, r. 1) has been expired for more than 4 years on 1 January 2008 must pass the qualification examination in order to be issued a certificate of qualification provided for in this Regulation. In case of failure, the person may not be readmitted to the examination unless he or she again completes the apprenticeship.