(a) The qualifications for all types of welders and brazers, the qualification of welding procedures, and the production tests for all types of manual and machine arc and gas welding and brazing processes shall be in accordance with section IX of the ASME (American Society of Mechanical Engineers) Code, as limited, modified, or replaced by specific requirements in this part. For general information Table 57.02-1(a) lists the various paragraphs in section IX of the ASME Code which are limited, modified, or replaced by regulations in this part.

Table 57.02-1(a)—Limitations and Modifications to the Adoption of section IX of the ASME Code

Open Table
Paragraphs in section IX ASME code, and Disposition Unit of this part
QW-101 replaced by 57.01-1(a).
QW-103 replaced by 57.02-3(a).
QW-201 modified by 57.03-1(a).
QW-202 modified by 57.04-1
QW-202.1 modified by 57.03-1(b).
QW-210 modified by 57.04-1.
QW-211 modified by 57.02-4.
QW-253 modified by 57.03-1(g).
QW-254 modified by 57.03-1(g).
QW-255 modified by 57.03-1(g).
QW-305 modified by 57.01-1(b).
QW-451 modified by 57.03-1(b) and 57.04-1.
QB-101 replaced by 57.01-1(a).
QB-103 replaced by 57.02-3(a).
QB-201 modified by 57.03-1(a).
QB-202 modified by 57.04-1.
QB-305 modified by 57.01-1(b).

(1) As stated in §50.15-5 of this subchapter, section IX of the ASME Code is adopted and shall be the governing requirements for the qualification of all types of welders and brazers, the qualification of all types of welding procedures, and the production tests for all types of manual and machine arc and gas welding and brazing processes used in fabricating power boilers, heating boilers, pressure vessels and piping unless specifically limited, modified or replaced by other regulations in this part.

(b) References to the ASME Code, like paragraph QW-131.1 indicate:

Q = Section IX, Welding and Brazing Qualifications, ASME Code.

W = Part containing requirements for welding procedure, welder, and welding operator qualifications.

131 = Major division within the part.

131.1 = Specific subparagraph within the part.

(c) When a paragraph or a section of the regulations in this part relates to material in section IX of the ASME Code, the relationship with the code will be shown immediately following the heading of the section or at the beginning of the paragraph as follows:

(1) (Modifies Q___.) This indicates that the material in Q___ is generally applicable but is being altered, amplified or augmented.

(2) (Replaces Q___.) This indicates that Q___ does not apply.

(3) (Reproduces Q___.) This indicates that Q___ is being identically reproduced for convenience, not for emphasis.

[CGFR 68-82, 33 FR 18872, Dec. 18, 1968, as amended by CGFR 69-127, 35 FR 9980, June 17, 1970; CGD 74-102, 40 FR 27460, June 30, 1975. Redesignated by CGD 88-032, 56 FR 35823, July 29, 1991; CGD 95-012, 60 FR 48050, Sept. 18, 1995]


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