Minnesota Session Laws - 1992, Regular Session

  

                         Laws of Minnesota 1992 

                        CHAPTER 436-H.F.No. 2640 
           An act relating to occupations and professions; 
          elevators and boilers; providing that boilers used for 
          mint oil extraction are considered to be used for 
          agricultural or horticultural purposes; amending 
          Minnesota Statutes 1991 Supplement, section 183.56. 
BE IT ENACTED BY THE LEGISLATURE OF THE STATE OF MINNESOTA: 
    Section 1.  Minnesota Statutes 1991 Supplement, section 
183.56, is amended to read: 
    183.56 [EXCEPTIONS.] 
    The provisions of sections 183.38 to 183.62, shall not 
apply to: 
    (1) boilers 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 p.s.i.g. 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 
American Society of Mechanical Engineers code stamped safety 
valve set at a maximum of 100 p.s.i.g.; 
     (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 p.s.i.g. 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 183.42; 
     (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 p.s.i.g.; 
     (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 140 degrees Fahrenheit or 
a pressure of 200 p.s.i.g.; 
     (17) steam powered turbines at paper-making facilities 
which are powered by steam generated by municipal steam district 
facilities at a remote location; and 
     (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 American Society of Mechanical Engineers stamped safety valve 
of adequate size, a water level indicator, and a pressure gauge. 
     An engineers license is not required for hot water supply 
boilers.  
     An engineers license 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, 2-1/2 horsepower or a pressure of 15 p.s.i.g.  
     Electric boilers not exceeding a maximum working pressure 
of 50 p.s.i.g., maximum of 30 kilowatt input or three horsepower 
rating shall be inspected as pressure vessels and shall not 
require an engineer license to operate. 
    Presented to the governor April 6, 1992 
    Signed by the governor April 8, 1992, 5:15 p.m.