Which part of a toilet need water label?

Hi Katarzyna,  For US projects, we are supposed to have all eligible fixtures to have a label, but the guide does not break down the individual components of each fixture. For toilets, it does specify that flow restrictors for lavatories must be labeled, but does not get that specific for toilets.  If we look at our Watersense certification website, it states that the flush valves and bowls can be labeled independently. So, for US projects, both of those components should have the label. For projects using the European Water Label, I would explore that website and see if they similarly define the eligible components. I would assume if a component is eligible for certification, then LEED would expect those components to comply.