49 C.F.R. § 190.205 Warning letters.
Title 49 - Transportation
Upon determining that a probable violation of 49 U.S.C. 60101 et seq. or any regulation or order issued thereunder has occurred, the Associate Administrator, OPS, may issue a Warning Letter notifying the owner or operator of the probable violation and advising the owner or operator to correct it or be subject to enforcement action under §§190.207 through 190.235. [Amdt. 190–6, 61 FR 38403, July 24, 1996]
Title 49: Transportation
PART 190—PIPELINE SAFETY PROGRAMS AND RULEMAKING PROCEDURES
Subpart B—Enforcement
§ 190.205 Warning letters.
