API-1161 › Complete Document History
Recommended Practice for Pipeline Operator Qualification (Oq)

Complete Current Edition:
   5TH EDITION - Pipeline Operator Qualification (OQ) - Nov. 1, 2021

Obsolete Revision Information:
   4TH EDITION - Recommended Practice for Pipeline Operator Qualification (OQ) - Feb. 1, 2019
   3RD EDITION - - Jan. 1, 2014
   2ND EDITION AMENDMENT 1 - AMENDMENT 1 FOR 2ND EDITION - Jan. 1, 2013
   2ND EDITION - RECOMMENDED PRACTICE FOR PIPELINE OPERATOR QUALIFICATION (OQ - March 1, 2012
   1ST EDITION - GUIDANCE DOCUMENT FOR THE QUA - Aug. 1, 2000