S-2.1, r. 4 - Safety Code for the construction industry

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2.15.4. Boom: The boom of a hoisting apparatus not covered by CSA Standard Z150-1974 Safety Code for Mobile Cranes and its supplement No. 1-1977 or CSA Standard Z248-1975 Code for Tower Cranes shall be installed and built according to the specifications approved by an engineer.
R.R.Q., 1981, c. S-2.1, r. 6, s. 2.15.4.