New Garage Fire Door

[cactushead]

We are planning on fitting an access door between our hallway and our garage because at the moment, we have to go outside to get into the garage.

I have done some research and believe that we have to install a 30 min fire door with a self closer, intumemescent strip and with a minimum 100mm non-combustible step down into the garage.
But I don't know about the rules and regulations regarding this sort of alteration and would appreciate any advice on this matter.
We are in Livingston, Scotland, the house is just under ten years old and I would like to know if we need planning permission or any other checks/legal stuff?

I would also like to know if you can use any door lining set as we are looking at an oak veneered one to match the oak door - I haven't seen any mention of fire rated ones even being available in my research.

Thanks for any advice you can give me.

 

[Mw Roofline]

A joiner can install intumescent strips into any frame. Not sure about planning and stuff.

 

[cactushead]

A joiner can install intumescent strips into any frame. Not sure about planning and stuff.

So the intumemescent strip is the only actual difference between a normal door lining set and a fire door one? If so that's good news.