In response to NTSB recommendations issued as a result of the San Bruno incident, PHMSA issued guidance on what it considers to be an effective integrity management (IM) performance evaluation process and program for measuring program effectiveness.  In addition, PHMSA IM inspections will emphasize review of operator IM performance metric methodology and confirm that operators maintain “adequate records” in support of its performance evaluation program.  Instructive for both gas and liquid IM program personnel, PHMSA summarizes specific characteristics that it expects to see in an “effective” operator IM performance evaluation process and program.  Click here to review the Advisory Bulletin.