Foreword API publications may be used by anyone desiring to do so. Every effort has been made by the Institute to assure the accuracy and reliability of the data contained in them; however@ the Institute makes no representation@ warranty@ or guarantee in connection with this publication and hereby expressly disclaims any liability or responsibility for loss or damage resulting from its use or for the violation of any federal@ state@ or municipal regulation with which this publication may conflict. Suggested revisions are invited and should be submitted to the RASA Director@ American Petroleum Institute@ 1220 L Street@ N.W.@ Washington@ D.C. 20005. This document is intended to facilitate the decision-making process. Under no circumstances does this guidance contradict the spill reporting and response requirements under various Federal and state statutes and regulations. The user should consult with the appropriate regulatory agency and follow regulatory requirements.