51. (Replaced, O.C. 501-2011)Date of enforcement: Section 45 applies, from 1 December 1981, to existing furnaces and boilers, and sections 47 and 49 apply from 1 May 1982 to existing conical burners.
R.R.Q., 1981, c. Q-2, r. 20, s. 51; O.C. 501-2011, s. 215.