HSE management guidelines for working together in a contract environment


IOGP Report 423

Learn the process for selecting suitable contractors and awarding contracts

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IOGP Report 423

This revised report describes how clients can improve client and contractor management of HSE risks for contracted activities:
•    selecting suitable contractors
•    setting out expectations and requirements
•    awarding contracts
•    managing all the phases of the contracting process.

In this revision, there is a greater emphasis on risk management throughout the contract life cycle. Assessing risk levels early in the contracting process determines which management system should be selected to govern the work.

There are also better definitions of:
•    assurance mechanisms, such as verifying barriers and controls
•    interfacing between client and contractor HSE-Management Systems.

Report 423 is supported by:

  • Report 423-01, Contractor HSE capability assessment and scoring system – Supplement to Report 423
  • Report 423-02, Guide to preparing HSE plans and Bridging documents – Supplement to Report 423


Additional information



Management Systems

Report Number


Document type


Publication Date

April 2017