69. The rail operating supervisor must stop equipment movement as long as one of the following defects still remains on the rail:
(1) compound transverse fissure or engine burn fracture that affects rail head cross-sectional area at 100%;
(2) vertical split head;
(3) head web separation;
(4) bolt hole crack extending to the rail head
(5) broken base more than 15.24 cm (6 in.); or
(6) ordinary break.
Notwithstanding the first paragraph, equipment movement is authorized provided that a person designated by the operator is in charge of it.
Applying joint bars may be a remedial action to the defects referred to in subparagraphs 1, 5 and 6 of the first paragraph.