Except bottoms of aboveground breakout tanks, each buried or submerged pipeline must have an external coating for external corrosion control if the pipeline is--
(a) Constructed, relocated, replaced, or otherwise changed after the applicable date in Sec. 195.401(c), not including the movement of pipe covered by Sec. 195.424; or
(b) Converted under Sec. 195.5 and--
(1) Has an external coating that substantially meets Sec. 195.559 before the pipeline is placed in service; or
(2) Is a segment that is relocated, replaced, or substantially altered.