As used in this subpart:
Occurrences which pose an imminent threat of oil pollution means those incidents that are likely to result in a discharge of oil and include, but are not limited to: vessel collisions, grounding or stranding; structural failure in a tank, pipeline or other oil handling system; fire, explosion or other events which may cause structural damage to a vessel or offshore facility. [CGD 77-055, 44 FR 16868, Mar. 19, 1979, as amended by CGD 91-035, 57 FR 36316, Aug. 12, 1992]