Boeing Icing Conditions Definition
Scenario: taxi and takeoff on a runway still wet after recent rain, but clear sky. Temperature 7°C.
This looks like ground icing conditions.
The exact statement is "....standing water..."
Now, do you think they mean "standing water" for what it is officially, that is more than 3 mm of water, or do they actually mean runway wet, with some water?
Depending on the points of view, egine antiicing could be mandatory, or not, for taxi and takeoff.