Montana Title 50. Health and Safety § 50-74-317. When unlicensed person may operate

(1) In case of accident, sickness, or any unforeseen event that prevents a licensed engineer, employed by an owner, renter, or user of an engine or boiler, from performing required duties, the owner, renter, or user may for 15 days employ any person 18 years of age or older whom the owner, renter, or user considers competent to run the engine or boiler.

(2) Although the person employed may not be the holder of an engineer's license, the person must have reasonable qualifications acceptable to the department.

(3) A person employing an unlicensed engineer shall immediately notify the department.

(4) An owner, renter, or user of boilers or steam machinery may not employ unlicensed engineers for more than 15 days in any 1 calendar year.