(a) The provisions of sections 326B.95 to 326B.998 shall not apply to:
(1) boilers and pressure vessels in buildings occupied solely for residence purposes with accommodations for not more than five families;
(2) railroad locomotives operated by railroad companies for transportation purposes;
(3) air tanks installed on the right-of-way of railroads and used directly in the operation of trains;
(4) boilers and pressure vessels under the direct jurisdiction of the United States;
(5) unfired pressure vessels having an internal or external working pressure not exceeding 15 psig with no limit on size;
(6) pressure vessels used for storage of compressed air not exceeding five cubic feet in volume and equipped with an ASME code stamped safety valve set at a maximum of 100 psig;
(7) pressure vessels having an inside diameter not exceeding six inches;
(8) every vessel that contains water under pressure, including those containing air that serves only as a cushion, whose design pressure does not exceed 300 psig and whose design temperature does not exceed 210 degrees Fahrenheit;
(9) boiler or pressure vessels located on farms used solely for agricultural or horticultural purposes; for purposes of this section, boilers used for mint oil extraction are considered used for agricultural or horticultural purposes, provided that the owner or lessee complies with the inspection requirements contained in section 326B.958;
(10) tanks or cylinders used for storage or transfer of liquefied petroleum gases;
(11) unfired pressure vessels in petroleum refineries;
(12) an air tank or pressure vessel which is an integral part of a passenger motor bus, truck, or trailer;
(13) hot water heating and other hot liquid boilers not exceeding a heat input of 750,000 BTU per hour;
(14) hot water supply boilers (water heaters) not exceeding a heat input of 500,000 BTU per hour, a water temperature of 210 degrees Fahrenheit, a nominal water capacity of 120 gallons, or a pressure of 160 psig;
(15) a laundry and dry cleaning press not exceeding five cubic feet of steam volume;
(16) pressure vessels operated full of water or other liquid not materially more hazardous than water, if the vessel's contents' temperature does not exceed 210 degrees Fahrenheit or a pressure of 200 psig;
(17) steam-powered turbines at papermaking facilities which are powered by steam generated by steam facilities at a remote location;
(18) manually fired boilers for model locomotive, boat, tractor, stationary engine, or antique motor vehicles constructed or maintained only as a hobby for exhibition, educational or historical purposes and not for commercial use, if the boilers have an inside diameter of 12 inches or less, or a grate area of two square feet or less, and are equipped with an ASME stamped safety valve of adequate size, a water level indicator, and a pressure gauge;
(19) any pressure vessel used as an integral part of an electrical circuit breaker;
(20) pressure vessels used for the storage of refrigerant if they are built to ASME code specifications, registered with the national board, and equipped with an ASME code-stamped pressure-relieving device set no higher than the maximum allowable working pressure of the vessel. This does not include pressure vessels used in ammonia refrigeration systems;
(21) pressure vessels used for the storage of oxygen, nitrogen, helium, carbon dioxide, argon, nitrous oxide, or other medical gas, provided the vessel is constructed to ASME or Minnesota Department of Transportation specifications and equipped with an ASME code-stamped pressure-relieving device. The owner of the vessels shall perform annual visual inspections and planned maintenance on these vessels to ensure vessel integrity;
(22) pressure vessels used for the storage of compressed air for self-contained breathing apparatuses;
(23) hot water heating or other hot liquid boilers vented directly to the atmosphere; and
(24) pressure vessels used for the storage of compressed air not exceeding 1.5 cubic feet (11.22 gallons) in volume with a maximum allowable working pressure of 600 psi or less.
(b) An engineer's license is not required for hot water supply boilers.
(c) An engineer's license and annual inspection by the department is not required for boilers, steam cookers, steam kettles, steam sterilizers or other steam generators not exceeding 100,000 BTU per hour input, 25 kilowatt, and a pressure of 15 psig.
(d) Electric boilers not exceeding a maximum working pressure of 50 psig, maximum of 30 kilowatt input or three horsepower rating shall be inspected as pressure vessels and shall not require an engineer license to operate.
(5492) RL s 2186; 1919 c 240 s 7; 1955 c 817 s 1; 1957 c 503 s 1; 1Sp1981 c 4 art 1 s 92; 1982 c 379 s 20; 1987 c 70 s 6; 1987 c 382 s 1; 1991 c 331 s 2; 1992 c 436 s 1; 2007 c 140 art 9 s 16,27; art 13 s 4; 2009 c 2 s 1; 2010 c 287 s 15; 2014 c 305 s 27; 2015 c 21 art 1 s 109; 2016 c 189 art 7 s 38; 2018 c 182 art 1 s 91
Structure Minnesota Statutes
Chapters 324 - 341 — Trade Regulations, Consumer Protection
Chapter 326B — Construction Codes And Licensing
Section 326B.01 — Definitions.
Section 326B.04 — Deposit Of Money.
Section 326B.07 — Construction Codes Advisory Council.
Section 326B.075 — Commissioner Not Subject To Subpoena.
Section 326B.081 — Definitions.
Section 326B.082 — Enforcement.
Section 326B.083 — Amount Of Penalty; Contents Of Administrative And Licensing Orders.
Section 326B.084 — False Information; Unlicensed Advertising.
Section 326B.085 — Recovery Of Litigation Costs And Expenses.
Section 326B.091 — Definitions.
Section 326B.0921 — Bond Requirements.
Section 326B.093 — Licenses Requiring Examination Administered By Commissioner.
Section 326B.094 — Renewal Of Licenses.
Section 326B.095 — Incomplete License Applications.
Section 326B.096 — Reinstatement Of Licenses.
Section 326B.097 — Prohibition Of Transfer.
Section 326B.098 — Continuing Education.
Section 326B.0981 — Continuing Education; Nondepartment Seminars.
Section 326B.099 — Continuing Education; Courses.
Section 326B.101 — Policy And Purpose.
Section 326B.103 — Definitions.
Section 326B.106 — General Powers Of Commissioner Of Labor And Industry.
Section 326B.107 — Public Buildings And State-licensed Facilities.
Section 326B.108 — Places Of Public Accommodation Subject To Code.
Section 326B.109 — Restroom Facilities.
Section 326B.112 — Bleacher Safety.
Section 326B.118 — Energy Code.
Section 326B.121 — State Building Code; Application And Enforcement.
Section 326B.124 — Exemptions.
Section 326B.125 — Exemption For Members Of Federally Recognized Tribes.
Section 326B.127 — State Building Official.
Section 326B.13 — Application Of Administrative Procedure Act.
Section 326B.133 — Building Officials.
Section 326B.135 — Construction Code Inspectors.
Section 326B.136 — Certain Inspections.
Section 326B.142 — Certain Certificates.
Section 326B.145 — Annual Report.
Section 326B.151 — Permit Fees, To Whom Applicable.
Section 326B.153 — Building Permit Fees.
Section 326B.16 — Enforcement Of Requirements For Persons With Disabilities.
Section 326B.163 — Definitions; Elevators.
Section 326B.166 — Elevator Inspection And Reporting.
Section 326B.172 — Licensing Authorities.
Section 326B.175 — Elevators, Entrances Sealed.
Section 326B.178 — Violations, Penalties.
Section 326B.184 — Fees For Licensure And Permit.
Section 326B.191 — Conflict Of Laws.
Section 326B.194 — Interstate Compact On Industrialized/modular Buildings.
Section 326B.197 — Bond Required For Certain Contractors.
Section 326B.31 — Definitions.
Section 326B.32 — Board Of Electricity.
Section 326B.34 — Alarm And Communication Systems.
Section 326B.35 — Safety Standards.
Section 326B.37 — Inspection Fee Schedule.
Section 326B.38 — Manufactured Electrical Parts; Exemption.
Section 326B.42 — Definitions.
Section 326B.43 — Plumbing Standards; Rules; Agreement With Municipality; Exemption.
Section 326B.435 — Plumbing Board.
Section 326B.437 — Reduced Pressure Backflow Prevention Rebuilders And Testers.
Section 326B.438 — Medical Gas Systems.
Section 326B.439 — Ban On Lead In Plumbing.
Section 326B.44 — Local Regulations.
Section 326B.45 — Violations To Be Reported To Commissioner.
Section 326B.46 — Licensing, Bond And Insurance.
Section 326B.47 — Unlicensed Individuals.
Section 326B.475 — Restricted Plumber License.
Section 326B.48 — Reciprocity With Other States.
Section 326B.49 — Applications, Fees.
Section 326B.50 — Definitions.
Section 326B.52 — Water Conditioning Contractor And Installer Standards.
Section 326B.53 — Local Regulations.
Section 326B.54 — Violations To Be Reported To Commissioner.
Section 326B.55 — Licensing; Qualifications; Rules.
Section 326B.555 — Registered Unlicensed Individuals.
Section 326B.56 — Bonding And Insurance.
Section 326B.58 — Fees; Renewal.
Section 326B.59 — State License; Examination; Application; Exemption.
Section 326B.701 — Construction Contractor Registration.
Section 326B.802 — Definitions.
Section 326B.805 — Licensing Requirements.
Section 326B.809 — Written Contract Required.
Section 326B.81 — Residential Roofers.
Section 326B.811 — Residential Roofing Contract; Right To Cancel.
Section 326B.814 — Rehabilitation Of Criminal Offenders.
Section 326B.821 — Continuing Education; Hours.
Section 326B.825 — Loss Of Qualifying Person.
Section 326B.83 — Application And Examination.
Section 326B.835 — Local Licenses.
Section 326B.84 — Grounds For Sanctions.
Section 326B.85 — Building Permit Conditioned On Licensure; Notice Of Permit Application.
Section 326B.855 — Service Of Process.
Section 326B.86 — Bond; Insurance.
Section 326B.865 — Sign Contractor; Bond.
Section 326B.87 — License Number; Advertising.
Section 326B.875 — Disclosures.
Section 326B.88 — Public Education.
Section 326B.885 — License Renewal.
Section 326B.89 — Contractor Recovery Fund.
Section 326B.90 — Department To Supervise High Pressure Piping.
Section 326B.91 — Definitions.
Section 326B.92 — Application, Permit, Filing, And Inspection Fees.
Section 326B.921 — Licensing And Registration.
Section 326B.922 — License Application And Renewal.
Section 326B.925 — Board Of High Pressure Piping Systems.
Section 326B.94 — Boats; Masters.
Section 326B.95 — Definitions.
Section 326B.953 — Inspection Personnel.
Section 326B.954 — Boiler Inspector License.
Section 326B.956 — Historical Boilers.
Section 326B.958 — Inspection And Registration.
Section 326B.961 — Triennial Audits And Team Leader Certifications.
Section 326B.964 — Standards Of Inspection.
Section 326B.966 — Inspection Procedures And Standards Of Repairs.
Section 326B.97 — Inspection Of Boilers And Pressure Vessels.
Section 326B.972 — License Requirement.
Section 326B.974 — School Engineer.
Section 326B.978 — Examinations; Classifications; Qualifications.
Section 326B.98 — Verification Of Certificate.
Section 326B.986 — Fees For Inspection.
Section 326B.988 — Exceptions.
Section 326B.99 — Report Of Insurer; Exemption From Inspection.
Section 326B.992 — Violations By Inspectors.
Section 326B.994 — Violations In Construction; Repair; Sale.