Hi @ Lydia. Yes, @ Kathie, it's the same in Scotland. I had a Food Hygiene Inspection by an Environmental Food Officer from Argyll and Bute Council last year, next door to your Glasgow City Council. Most of it was about raw/cooked food and temperatures. I had to buy a digital cooked food thermometer, record fridge temperatures and write my procedures. I'm sure you would find it straightforward with your Certificate.
They gave me the following links on the Food Standards Scotland website:
http://www.legislation.gov.uk/ukpga/1990/16/contents
http://www.legislation.gov.uk/ssi/2006/3/contents/made
https://www.food.gov.uk/sites/default/files/multimedia/pdfs/hiojregulation.pdf
and also a Food Business Registration Form.
The Officer helped me with form-filling etc. There was no charge. I got though it all with my hand held!
I had been cooking for guests for 5 years without being inspected. I think the council expected me to register my B&B with them and then the inspections would have followed. I didn't know about this. They must have found me through Visit Scotland tourist information. It wasn't a problem though. I'm sure your council would be delighted if you approached them.
I suspect it's easier to pass a Food Hygiene Inspection if you are a B&B than if you are providing meals for the general public. We are fortunate in that Argyll and Bute Council support small businesses, especially if they are in tourism, which is a big part of the area's income. For example, we don't pay Council Tax on the B&B wing of the house!
Good luck!