[godelski]

To be fair, that's going to include the vast majority of aircraft. Most people will be above 2500AGL if they're not flying for very short distances. That said, there's always people that just like to fly in an unsafe manner.

[jacobreg]

Sorry, I may have worded that confusingly. The important number is 10,000 MSL. If you don't go above that you don't need ADS-B (as long as you stay out of the other airspace mentioned). They make an exception for people flying around high terrain, so if you are above 10,000 MSL but below 2,500 AGL then you are also exempt.