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Guidance on Significant Modifications under the COMAH Regulations

  • Date(s)
    Thursday, 18 April 2019
  • Time(s)
    tea/coffee from 6:00 PM, presentation starts at 6:30 PM
  • Venue
    Rochestown Park Hotel, Cork

About the event

Under the COMAH Regulations, modifications to notified facilities, processes or inventories require an assessment to determine whether there could be significant consequences for major accident hazards. COMAH documentation, including the Safety Report, may have to be amended before modification and sent to the Health & Safety Authority well in advance. The HSA has produced a detailed guidance document to explain and guide operators through the process. The guidance sets out the criteria the HSA uses in deciding to allow a modification to proceed (or not) or in referring it to a planning authority. This presentation will give an overview of the guidance to assist in determining what should be done when considering a 'significant modification'.

About the speaker

Pat Conneely, Head of COMAH, Chemical Production & Storage Unit Pat Conneely heads up the COMAH, Chemical Production & Storage Unit of the Health & Safety Authority. He has been an inspector with the Authority since 1997, having previously occupied research and production roles within the Pharma-chem industry. Pat steered the implementation of the COMAH Regulations 2015, the Guidance on Safety Report Assessment and the inspection approach under Seveso III. He was one of the authors of the HSA's Policy & Approach to Land-use Planning document and the recent Guidance on Significant Modifications.


Admission is free and all are welcome.  Advance booking is required however and should be made using the link provided.

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