ABSGUIDANCE NOTES ON CERTIFICATION OF EXISTING BLOWOUT PREVENTERS AND ASSOCIATED SYSTEMS .2010 1 GUIDANCE NOTES ON CERTIFICATION OF EXISTING BLOWOUT PREVENTERS AND ASSOCIATED SYSTEMS DECEMBER 2010 CORRIGENDA/EDITORIALS 15 February 2011 Page No. Paragraph Comments 2 6 Reference “ABS Guide for the Certification of Drilling Systems” to read “ABS Guide for the Classification of Drilling Systems”.