CDOIF
Chemical and Downstream Oil
Industries Forum
CDOIF is a collaborative venture formed to agree strategic areas for
joint industry / trade union / regulator action aimed at delivering
health, safety and environmental improvements with cross-sector
benefits.
Foreword
In promoting and leading on key sector process safety initiatives, CDOIF has developed through its
members this guideline on environmental risk tolerability for COMAH establishments.
The intent of this document is to provide a reference for those organisations completing
environmental risk assessments.
This guidance (or equivalent) should be used from the date of publication to carry out
environmental risk assessments required by COMAH. The document will remain open for
comment and revision until end 2014 to allow industry to use the process and provide feedback on
any significant issues that may arise from its implementation.
It is not the intention of this guidance to replace the existing DETR 1999 publication ‘Guidance on
the Interpretation of Major Accident to the Environment for the Purposes of the COMAH
Regulations’, but provide a framework and screening methodology by which regulators and duty
holders can apply it.
There are no limitations on further distribution of this guideline to other organisations outside of
CDOIF membership, provided that:
1.
It is understood that this report represents CDOIF’s view of common guidelines as applied
to environmental risk assessment, and determining risk tolerability.
2.
CDOIF accepts no responsibility in terms of the use or misuse of this document.
3.
The report is distributed in a read only format, such that the name and content is not
changed and that it is consistently referred to as "CDOIF Guideline – Environmental Risk
Tolerability for COMAH sites".
4.
It is understood that no warranty is given in relation to the accuracy or completeness of
information contained in the report except that it is believed to be substantially correct at the
time of publication.
This guidance is not intended to be an authoritative interpretation of the law; however Competent
Authority (CA) inspectors may refer to it in making judgements about a duty holder’s compliance
with the law. This will be done in accordance with the CA’s published enforcement policies (refer to
www.hse.gov.uk/pubns/hse41.pdf) and it is anticipated that this document will facilitate a consistent
national approach. Reference should also be made to the CA’s ‘All Measures Necessary
Guidance’ to local inspection teams.
It should be understood however that this document does not explore all possible options for
determining environmental risk tolerability or environmental risk assessment, nor does it consider
individual site requirements – Following the guidance is not compulsory and duty holders are free
to take other action.
Guideline – Environmental Risk Tolerability for COMAH Establishments v1.0
Page 2 of 88




