2006 Minnesota Statutes

183.51 EXAMINATIONS; CLASSIFICATIONS; QUALIFICATIONS.
    Subdivision 1. Engineers, classes. Engineers shall be divided into four classes:
(1) Chief engineers; Grade A, Grade B, and Grade C. (2) first class engineers; Grade A, Grade
B, and Grade C. (3) second class engineers; Grade A, Grade B, and Grade C. (4) Special engineers.
    Subd. 2. Applications. Any person who desires an engineer's license shall submit a written
application, on blanks furnished by the commissioner or designee, at least 15 days before the
requested exam date. The application is valid for one year from the date the commissioner or
designee received the application.
    Subd. 2a. Examinations. Each applicant for a license must pass an examination approved by
the commissioner. The examinations shall be of sufficient scope to establish the competency of
the applicant to operate a boiler of the applicable license class and grade.
    Subd. 3. High and low pressure boilers. For the purposes of this section and section 183.50,
high pressure boilers shall mean boilers operating at a steam or other vapor pressure in excess
of 15 p.s.i.g., or a water or other liquid boiler in which the pressure exceeds 160 p.s.i.g. or a
temperature of 250 degrees Fahrenheit.
Low pressure boilers shall mean boilers operating at a steam or other vapor pressure of 15
p.s.i.g. or less, or a water or other liquid boiler in which the pressure does not exceed 160 p.s.i.g.
or a temperature of 250 degrees Fahrenheit.
    Subd. 4. Chief engineer, Grade A. A person seeking licensure as a chief engineer, Grade A,
shall be at least 18 years of age and have experience which verifies that the person is competent to
take charge of and be responsible for the safe operation and maintenance of all classes of boilers,
steam engines, and turbines and their appurtenances; and, before receiving a license, the applicant
shall take and subscribe an oath attesting to at least five years actual experience in operating such
boilers, including at least two years experience in operating such engines or turbines.
    Subd. 5. Chief engineer, Grade B. A person seeking licensure as a chief engineer, Grade B,
shall be at least 18 years of age and have habits and experience which justify the belief that the
person is competent to take charge of and be responsible for the safe operation and maintenance
of all classes of boilers and their appurtenances; and, before receiving a license, the applicant
shall take and subscribe an oath attesting to at least five years actual experience in operating
those boilers.
    Subd. 6. Chief engineer, Grade C. A person seeking licensure as a chief engineer, Grade C,
shall be at least 18 years of age and have habits and experience which justify the belief that the
person is competent to take charge of and be responsible for the safe operation and maintenance
of all classes of low pressure boilers and their appurtenances, and before receiving a license, the
applicant shall take and subscribe an oath attesting to at least five years of actual experience
in operating such boilers.
    Subd. 7. First-class engineer, Grade A. A person seeking licensure as a first-class engineer,
Grade A, shall be at least 18 years of age and have experience which verifies that the person is
competent to take charge of and be responsible for the safe operation and maintenance of all
classes of boilers, engines, and turbines and their appurtenances of not more than 300 horsepower
or to operate as a shift engineer in a plant of unlimited horsepower. Before receiving a license,
the applicant shall take and subscribe an oath attesting to at least three years actual experience
in operating such boilers, including at least two years experience in operating such engines
or turbines.
    Subd. 8. First-class engineer, Grade B. A person seeking licensure as a first-class engineer,
Grade B, shall be at least 18 years of age and have habits and experience which justify the belief
that the person is competent to take charge of and be responsible for the safe operation and
maintenance of all classes of boilers of not more than 300 horsepower or to operate as a shift
engineer in a plant of unlimited horsepower. Before receiving a license the applicant shall take
and subscribe an oath attesting to at least three years actual experience in operating such boilers.
    Subd. 9. First-class engineer, Grade C. A person seeking licensure as a first-class engineer,
Grade C, shall be at least 18 years of age and have habits and experience which justify the belief
that the person is competent to take charge of and be responsible for the safe operation and
maintenance of all classes of low pressure boilers and their appurtenances of not more than 300
horsepower or to operate as a shift engineer in a low pressure plant of unlimited horsepower.
Before receiving a license, the applicant shall take and subscribe an oath attesting to at least three
years actual experience in operating such boilers.
    Subd. 10. Second-class engineer, Grade A. A person seeking licensure as a second-class
engineer, Grade A, shall be at least 18 years of age and have experience which verifies that the
person is competent to take charge of and be responsible for the safe operation and maintenance
of all classes of boilers, engines, and turbines and their appurtenances of not more than 100
horsepower or to operate as a shift engineer in a plant of not more than 300 horsepower, or to
assist the shift engineer, under direct supervision, in a plant of unlimited horsepower. Before
receiving a license the applicant shall take and subscribe an oath attesting to at least one year
of actual experience in operating such boilers, including at least one year of experience in
operating such engines or turbines.
    Subd. 11. Second-class engineer, Grade B. A person seeking licensure as a second-class
engineer, Grade B, shall be at least 18 years of age and have habits and experience which justify
the belief that the person is competent to take charge of and be responsible for the safe operation
and maintenance of all classes of boilers of not more than 100 horsepower or to operate as a shift
engineer in a plant of not more than 300 horsepower or to assist the shift engineer, under direct
supervision, in a plant of unlimited horsepower. Before receiving a license the applicant shall take
and subscribe an oath attesting to at least one year of actual experience in operating such boilers.
    Subd. 12. Second-class engineer, Grade C. A person seeking licensure as a second-class
engineer, Grade C, shall be at least 18 years of age and have habits and experience which justify
the belief that the person is competent to take charge of and be responsible for the safe operation
and maintenance of all classes of low pressure boilers and their appurtenances of not more than
100 horsepower or to operate as a shift engineer in a low pressure plant of not more than 300
horsepower, or to assist the shift engineer, under direct supervision, in a low pressure plant of
unlimited horsepower. Before receiving a license, the applicant shall take and subscribe an oath
attesting to at least one year of actual experience in operating such boilers.
    Subd. 13. Special engineer. A person seeking licensure as a special engineer shall be at
least 18 years of age and have habits and experience which justify the belief that the person is
competent to take charge of and be responsible for the safe operation and maintenance of all
classes of boilers and their appurtenances of not more than 30 horsepower or to operate as a shift
engineer in a plant of not more than 100 horsepower, or to serve as an apprentice in any plant
under the direct supervision of the properly licensed engineer.
    Subd. 14. Current boiler operators. Any person operating a boiler other than a steam
boiler on April 15, 1982 shall be qualified for application for the applicable class license upon
presentation of an affidavit furnished by an inspector and sworn to by the person's employer or a
chief engineer. The applicant must have at least the number of years of actual experience specified
for the class of license requested and pass the appropriate examination.
    Subd. 15. Rating horsepower. For the purpose of rating boiler horsepower for engineer
license classifications only: ten square feet of heating surface shall be considered equivalent to
one boiler horsepower for conventional boilers and five square feet of heating surface equivalent
to one boiler horsepower for steam coil type generators.
History: (5487) RL s 2181; 1919 c 113 s 1; 1919 c 240 s 4; 1947 c 563 s 2; 1957 c 503 s 13;
1957 c 876 s 2; 1965 c 49 s 1; 1973 c 725 s 28-35; 1974 c 406 s 41; 1982 c 379 s 15; 1986 c 444;
1988 c 719 art 19 s 6-8; 1Sp2005 c 1 art 4 s 47,48