Nosilni tlaki za notranjo uporabo, vključno s pokritimi prostori za javni prevoz, sestavljene iz sestavnih delov (nosilni elementi, ploščice, mozaik plošče, parket, obloge iz pletene žične mrežice ali pločevine, talne rešetke, trdni laminati, leseni tlaki) in v obliki nosilnih sistemov, trženih kot kompleti (dvignjeni podi; dvojni podi), požarnih razredov AFL, BFL ali CFL, katerih požarna odpornost se med proizvodnjo ne spremeni, na splošno tisti, ki so dovzetni za kemične spremembe, npr. materiali, ki zavirajo gorenje, ali tisti, pri katerih lahko sprememba sestave povzroči spremembo požarne odpornosti.
Rigid flooring products for internal uses including enclosed public transport premises in the form of components (paving units, tiles, mosaics, parquet, decking of mesh or sheet, floor gratings, rigid laminated floorings, wood based products) and in the form of load bearing systems put on the market as kits (raised access floors; cavity floors) of reaction to fire classes AFL, BFL or CFL for which the reaction to fire performance is susceptible to change during the production, in general those subject to chemical modification, e.g. fire retardants, or where changes of composition may lead to changes in reaction to fire performance.