A drop down list creating a drop down list

Hi Experts

What a great day!

OK here is my need, I have looked around but couldn't quite find what I am looking for.

I have a pretty large spreadsheet that needs to be populated with as little room for interpretation as possible.

So. I have 2 fields in question, Delay codes and Remarks.
The delay codes are found in a list in the second sheet somewhere and cause a drop down for the data capture person to select. Now each delay code has its own list of possible remarks that will apply.

Is there any way to have only the relevant remarks be available in the remarks drop down?

I have put together a file that will help you see what I need. The lists are all incomplete ad need to be easily edited and added too.

Thanks so much
example.xlsx