@jdeas. Yes, not only “public” ramp areas at each public airport, but also “public” runways and taxiways that are not allowed to charge fees/taxes. The FAA has the authority to do this, they just need the incentive. If a private enterprise such as an FBO wants to “claim” rights to the ramp area in front of their operation, and charge fees, then OK if the city/municipality gives them approval, by vote of elected representatives. But leave the “publically designated areas” such as runways, taxiways, and specific ramp areas, out of the fee/tax money grubbing scheme.