Chairs in village hall without fire retardant label

[Scotia]

We have around 50 banqueting chairs in our village hall. They are traditional style with padded backs and seats.  They are a good few years old, but still in good condition. Someone has suggested that they are unsafe as they have no fire-retardant labels and need to be replaced. Is this correct?
I would greatly appreciate advice on this or be directed where to find out the position.

[AnthonyB]

Commercial use is different to domestic - guidance is here https://www.fira.co.uk/technical-information/flammability/fire-safety-of-furniture-and-furnishings-in-the-contract-and-non-domestic-sectors