25. A pool for which plans were approved or that was built before 31 August 1977, is not subject to sections 3, 5, 6, 8, 9, 10 and 18, to subsections 1, 2 and 4 of section 7 and to paragraphs a, b, c and d of section 20.
R.R.Q., 1981, c. S-3, r. 3, s. 25.