The essence of Hazop is that is is a small group activity during parts of which individuals spark ideas off each other. A key element of of the training is usually to role play such a group, using an example drawing.

So I personally would be extremely suspicious of on-line Hazop training, as it doesn't then provide any expereince of these group interactions. That said, if it is 'awareness training' before attending your first session, maybe that's OK. However, a good Hazop leader will always brief newcomers on the process and the expectations for participants, so paying for an on-line briefing as well doesn't seem cost effective.

If you are wanting the training to become a Hazop secretary or, worse, a leader, then I would suggest it is not possible to gain the required competences solely on-line. If IChemE offer such traing for prspective leaders I'm very surprised.

FYI, I post this as an experienced Hazop leader, who first learned the methodology in ICI where it was invented, in 1970s, and then practiced it up to 1990s. Earlier this year I completed some refresher training with a very experienced team and learned that nothing has changed much in the process, though recording is now much more detailed - again, not something you can easily learn on-line.

Thank you both for your responses.
I understand what you are saying and it is food for thought.
Thanks again, Adrian