Även om den här referensen är sekundär- handinformation föreslår författaren att National Weather Service förklarar varför vissa rapporteringsstationer inte samlas eller överförs av myndigheter som FAA eller Nav Canada. Här är vad han säger:
Many local airports across the state, as well as the country, have been fortunate to generate the funding to purchase AWOS equipment to obtain current weather conditions for their location. While establishing these sites however, they are generally not fully informed of the requirements needed to make this data available over the worldwide network used by the FAA and NWS. The FAA controls the stream of data from small airports such as these and requires the individual sites to purchase additional equipment and pay a monthly fee to send the data in to their system.