Section 23:539 - Installation of boilersA. No boiler shall be installed after six months from the date upon which the rules and regulations formulated by the assistant secretary governing new installations shall have become effective, unless the boiler conforms to such rules and regulations.B. All boilers installed and ready for use, or being used, before the six months shall have elapsed, shall be made to conform to the rules and regulations of the assistant secretary governing existing installations, and the formulas therein prescribed shall be used in determining the maximum allowable working pressure therefor.C. All boilers to be installed after six months from the date upon which the rules and regulations of the assistant secretary shall become effective, shall be inspected during construction by an inspector authorized to inspect boilers in this state or, if constructed outside the state, by an inspector holding a certificate from the National Board of Boiler and Pressure Vessel Inspectors, or a certificate of authority from the assistant secretary, which may be issued by him to any inspector who holds a certificate of authority to inspect boilers from a state which has adopted boiler rules that require standards of construction and operation substantially equal to those of this state.Amended by Acts 1983, 1st Ex. Sess., No. 8, §1.