Section 408.4127. Boiler repairers; classes of licenses.

 (1)  A class I license allows a licensee to repair a  boiler  by means other than welding, riveting, or other fabrication process.

(2)     A class II license allows a licensee to do both of the following:

(a)   Repair a low-pressure boiler, a hot water supply  boiler,  and   a  fire tube boiler of any pressure.

(b)     Perform work covered by a class I license.

(3)     A class III license allows a licensee to do all of the following:

(a)     Repair a high-pressure boiler.

(b)      Repair or replace non-boiler external piping, as defined by ASME  code B31.1 and R 408.4032.

(c)     Perform work covered by a class II license.

(4)     A class IV license allows a licensee to do all of the following:

(a)      Repair or field-erect a boiler of any pressure.  Exception:  a  boiler that has a nuclear heat source.

(b)     Repair or replace non-boiler external piping as defined by   ASME  code B31.1 and R 408.4032.

(5)     A class V license allows a licensee to erect and repair a boiler that has a nuclear heat source or its parts, appurtenances, or system components, and also provides the following:

(a)     The licensee may repair or  replace  non-boiler   external  piping,  as defined by ASME code B31.1 and R 408.4032.

(b)       Before a license is issued, an applicant for a class V    license     shall submit evidence of the following:

(i)      Familiarity with and knowledge of all federal  rules  and  regulations regarding the construction of a boiler that has a nuclear heat source.

(ii)       Employment by a company in possession of a valid ASME N-type symbol stamp applicable to the portions of any nuclear boiler system he or she proposes to repair.

(6)       A class P license qualifies a person to install or    repair   non-boiler external piping as defined by ASME code B31.1 and R 408.4032.

(7)       A licensed boiler repairer shall secure a permit for a change in use of an existing boiler or replacement by mechanical methods, without welding, of sections in sectional boilers, heat exchangers,  feed   water  heater  or economizer, and tube bundles in accordance with R 408.4033.

History: 1979 AC; 1995 AACS; 1998-2000 AACS; 2006 AACS; 2009 AACS.