Section 27-627. Quality control

(a) Reference. The provisions of tables 10-1
  and 10-2 shall apply.
    (b) Welding operations.
    (1)  Welding work shall be performed only by persons who have obtained
  a license from the commissioner.
    (2) Where manual welding work is not performed  in  the  city  of  New
  York,  welds  shall  be  made  by welders qualified under the applicable
  provisions of reference standard RS 10-25.
    (3) Tack welds that are not later  incorporated  into  finished  welds
  carrying calculated stress shall not be considered as structural welds.
    (4)  The  inspection  of  welding  operations stipulated in table 10-2
  shall include a check to ascertain that the welders employed on the work
  have the required license or are qualified in accordance with  paragraph
  two of this subdivision.