Montana Title 37. Professions and Occupations § 37-69-102. Permanent and temporary exceptions

(a) when an owner of a single-family residence used exclusively for the owner's personal use installs all sanitary plumbing and potable water supply piping or when a mobile home dealer or a manufactured housing dealer connects a mobile home or a manufactured house to existing sanitary and potable water supply facilities as part of delivering and setting up a mobile home for a purchaser;

(b) in any mine, mill, smelter, refinery, or railroad;

(c) in a farm or ranch not connected to public water supply and sewage disposal systems. For the purposes of this subsection (1)(c), a “farm or ranch” means the same as in 39-3-402.

(d) in cities, towns, water districts, and water user associations extending, repairing, or replacing their own water and sewer mains;

(e) installation of water conditioner services in private dwellings;

(f) minor work by employees or agents of an appliance dealer incidental to the installation of an appliance purchased from the dealer;

(g) installation of a water meter by a qualified person appointed by the administrative authority of the water system;

(h) in the case of a private water supply, installation of the pump, waterline, or pressure tank, regardless of whether the pump, waterline, or pressure tank is located inside or outside the structure being served;

(i) in the case of an apprentice, as that term is defined in 39-6-101, who is working under the supervision of a licensed plumber; and

(j) in the case of a student who is enrolled in a plumbing training program offered by an accredited college or university recognized by the board of regents if the student is undertaking class assignments in a classroom or a hands-on laboratory setting. This subsection (1)(j) does not authorize a student to engage in any plumbing work that will be incorporated or used in an occupied structure or connected to a plumbing system where work must be performed by a licensed plumber.

(a) the council, commission, or board of directors has provided reasonable notice by certified letter to the board; and

(b) the board has approved the temporary authorization or has failed to respond to the certified letter required under subsection (3)(a) within 30 days of the letter's postmark.