Section 192.241 - Inspection and test of welds(a) Visual inspection of welding must be conducted by an individual qualified by appropriate training and experience to ensure that: (1) The welding is performed in accordance with the welding procedure; and(2) The weld is acceptable under paragraph (c) of this section.(b) The welds on a pipeline to be operated at a pressure that produces a hoop stress of 20 percent or more of SMYS must be nondestructively tested in accordance with § 192.243 , except that welds that are visually inspected and approved by a qualified welding inspector need not be nondestructively tested if:(1) The pipe has a nominal diameter of less than 6 inches (152 millimeters); or(2) The pipeline is to be operated at a pressure that produces a hoop stress of less than 40 percent of SMYS and the welds are so limited in number that nondestructive testing is impractical.(c) The acceptability of a weld that is nondestructively tested or visually inspected is determined according to the standards in section 9 or Appendix A of API Std 1104 (incorporated by reference, see§ 192.7 ). Appendix A of API Std 1104 may not be used to accept cracks.35 FR 13257, Aug. 19, 1970, as amended by Amdt. 192-37, 46 FR 10160, Feb. 2, 1981; Amdt. 192-78, 61 FR 28784, June 6, 1996; Amdt. 192-85, 63 FR 37503, July 13, 1998; Amdt. 192-94, 69 FR 32894 , June 14, 2004; Amdt. 192-119, 80 FR 181 , Jan. 5, 2015; Amdt. 192-120, 80 FR 12778 , Mar. 11, 2015