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API RP 1621

5th Edition, January 1, 1993

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Bulk Liquid Stock Control at Retail Outlets

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Product Details:

  • Revision: 5th Edition, January 1, 1993
  • Published Date: May 1993
  • Status: Active
  • Document Language: English
  • Published By: American Petroleum Institute (API)
  • Page Count: 36
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:


This recommended practice contains procedures and methods designed to control and identify product losses through use of a suitable inventory control accounting system. Employees should be trained in the procedures in this recommended practice and be required to follow them. Use of these procedures will enable the operator to identify trends and significant changes in inventory variations that may indicate the presence of controllable losses. Suitable corrective actions may then be taken to reduce product losses.

On September 23, 1988, the U.S. Environmental Protection Agency (EPA) issued its Technical Standards and Corrective Action Requirements for Owners and Operators of Underground Storage Tanks (UST). These standards, which will be found in 40 Code of Federal Regulations Part 280, were published in Volume 53 of the Federal Register at pages 37194-37212. Furthermore, legislation and regulations on all aspects of UST management are under active development at state and local levels. These levels may have requirements other than those specified in the EPA Technical Standards, and the appropriate government agencies should be consulted about regulations that apply in the geographic area of interest before any action suggested by this recommended practice is taken. When used in this document, the term implementing agency means EPA or the designated state or local agency responsible for carrying out an approved UST program.

This recommended practice is based upon the experience of knowledgeable members of the petroleum industry. In some respects it may be more stringent than the requirements imposed by the EPA Technical Standards. However, the recommended practice does not attempt to cover all of the subjects covered by the EPA Technical Standards. Furthermore, while substantial effort has been made to ensure that none of the recommendations contravene the requirements of the EPA Technical Standards, API is not undertaking to interpret the EPA Technical Standards and cannot guarantee that its recommendations are completely in accord with them, nor is any representation made that these recommendations conform with any requirements imposed by state and local agencies.

This recommended practice supersedes and replaces API Recommended Practice 1621, fourth edition, December 1987. The EPA Technical Standards provide that Recommended Practice 1621 can be used as a guide to comply with EPA's standards for inventory control. According to EPA, an owner or operator conforms with this provision of the EPA Technical Standards if he or she uses the 1987 edition, which was in force when the EPA Technical Standards became final. However, an owner or operator who uses this new edition will also be meeting the requirements of the 1987 edition and EPA encourages the use of the most recent version.

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 director of the Manufacturing, Distribution and Marketing Department, American Petroleum Institute, 1220 L Street, N.W., Washington, D.C. 20005.