(a) A steel pipeline previously used in other than natural gas service qualifies for use under this Part if the operator prepares and follows a written procedure to carry out the following requirements:
(1) The design, construction, operating, and maintenance history of the pipeline must be reviewed and, where sufficient historical records are not available, appropriate tests must be performed to determine if the pipeline is in satisfactory condition for safe operation.
(2) The pipeline right-of-way, all aboveground segments of the pipeline, and appropriately selected underground segments must be visually inspected for physical defects and operating conditions which reasonably could be expected to impair the strength or tightness of the pipeline.
(3) All known unsafe defects and conditions must be corrected in accordance with this Part.
(4) The pipeline must be tested in accordance with sections 255.503 through 255.517 of this Part to substantiate the maximum allowable operating pressure permitted by this Part.
(b) Each operator must keep for the life of the pipeline a record of investigations, tests, repairs, replacements, and alterations made under the requirements of subdivision (a) of this section.
(c) An operator converting a pipeline from service not previously covered by this part must notify the department of intent to conversion of service 60 days prior to when conversion occurs and to PHMSA as required by 49 CFR section 191.22.