I doubt there is any "aviation law" on them, because they are not mandatory lights. Outside of specific regulations regarding anticollision lights and navigation lights (FAR 91.209 in the US) and some recommendations regarding runway incursions (AC 120-74), there are no "laws" regulating their use. Even FAR 121.323, which requires that landing lights be installed, does not say when they are required to be [not] used. Company SOPs usually include procedures for use of lights.
Why don't you go down to your nearest aviation regulatory office and ask one of the regulators or inspectors? What might be "law" in the US may not be "law" in Poland...