The DOT / OPS has corrected the hazardous liquid pipeline corrosion rule (66 FR 66994, December 27, 2001), by reformatting the table in � 195.573 (c) to clarify that rectifiers, reverse current switches, diodes, and interference bonds whose failure would jeopardize structural protection should all be checked 6 times each calendar year, but with intervals not exceeding 2.5 months. The previous table had extraneous lines that were confusing.
