49. This Regulation replaces sections 43 to 55, 58 to 64, 78 and 86 of the Regulation respecting pressure vessels (chapter A-20.01, r. 1), concerning the personal qualification of welder and the qualification of inspectors, the Order respecting certificates of competency with respect to gas (R.R.Q., 1981, c. D-10, r. 2), except for category 311 under the heading “300 — Distribution”, of section 1, Schedule A and the list of categories in Schedule B, sections 17 and 32 of the Regulation respecting gas and public safety (R.R.Q., 1981, c. D-10, r. 4), sections 28 to 39 and 41 to 60 of the Regulation respecting stationary enginemen (chapter M-6, r. 1) and Schedule D to that Regulation, maintained in force by section 216 of the Building Act (chapter B-1.1).