For commissioned officers not members of the flying personnel, the Order of Leopold II is only awarded at the time of retirement, even if it is in fact earned before that in line with the rules presented above. Even then, because of the generic rule that one cannot be awarded a National Order at a level below the highest that the recipient has already received, the Order of Leopold II will not be awarded if the recipient has been awarded in the meantime a higher National Order than the Order of Leopold II at the Class he could receive. This apparent anomaly is due to the fact that King Albert I, who was fond of aviation, wanted to provide a special reward to aircraft pilots, and therefore ordered that the Order of Leopold II only be awarded to them. In its early days, the Order of Leopold II awarded to pilots was adorned with a bar for every one hundred hours flown (a practice currently discontinued).