(a) to prepare a boiler or pressure vessel for inspection in the manner that the boiler inspector requires and to supply water for and to assist in making any test,

(b) to cut or drill holes in a boiler or pressure vessel, or to use any other method to enable the boiler inspector to determine the thickness and condition of the plates,

(c) to steam up, put under pressure or otherwise put into operation a boiler or pressure vessel so that the boiler inspector may test the safety valves or any part of the installation under operating conditions, and

(d) to extinguish the fire in a boiler or to reduce the pressure in a boiler or pressure vessel to zero immediately, if the boiler inspector has reason to believe that it is in an unsafe condition, and that it not be operated until made safe and approved by a boiler inspector.

(a) to prepare a boiler or pressure vessel for inspection in the manner that the boiler inspector requires and to supply water for and to assist in making any test,

(b) to cut or drill holes in a boiler or pressure vessel, or to use any other method to enable the boiler inspector to determine the thickness and condition of the plates,

(c) to steam up, put under pressure or otherwise put into operation a boiler or pressure vessel so that the boiler inspector may test the safety valves or any part of the installation under operating conditions, and

(d) to extinguish the fire in a boiler or to reduce the pressure in a boiler or pressure vessel to zero immediately, if the boiler inspector has reason to believe that it is in an unsafe condition, and that it not be operated until made safe and approved by a boiler inspector.