Section 6-77-153 - General requirements(a) Pressure increases. Whenever the requirements of this subchapter require that an increase in operating pressure be made in increments, the pressure must be increased gradually, at a rate that can be controlled, and in accordance with the following: (1) At the end of each incremental increase, the pressure must be held constant while the entire segment of pipeline that is affected is checked for leaks; and(2) Each leak detected must be repaired before a further pressure increase is made, except that a leak determined not to be potentially hazardous need not be repaired, if it is monitored during the pressure increase and it does not become potentially hazardous.(b) Records. Each operator who uprates a segment of pipeline shall retain for the life of the segment a record of each investigation required by this subchapter, of all work performed, and of each pressure test conducted, in connection with the uprating.(c) Written plan. Each operator who uprates a segment of pipeline shall establish a written procedure to ensure compliance with each applicable requirement of this subchapter.(d) Limitation on increase in maximum allowable operating pressure. Except as provided in section 6-77-154(c), a new maximum allowable operating pressure established under this subchapter may not exceed the maximum that would be allowed under this chapter for a new segment of pipeline constructed of the same materials in the same location.[Eff ] (Auth: HRS § 269-6) (Imp: 49 C.F.R. §192.553, OCT 1, 1990)