This depicts where ADS B Out will be required starting 1/1/2020.
I live, and keep my planes, in the area defined as the 30 nm veil of the Class B airspace for KBOS. I have been flying in this location since the days of the ADCOCK range and the existence of
many more airports. (stewartb, I would have been happy being in Alaska, but this is where my life's fortune has taken me.) I used to be able to fly into Logan by calling them on HF and listening on LF in my hand propped $400 Tcraft with a wind driven generator. I used to be able to fly into Logan, taxi up to Northeast Airlines passenger terminal, pick up my pay check and fly home. Without a transponder. Those days are long gone. Over time my flying activities have been squeezed and squeezed. I used to fly out of a large square shaped airport (PLY) which had several grass/dirt runways. Now a lot of jet planes use the (non tower) "field".
During the years before the Class B, there was a lot of small airplane flying for the fun of it. Gradually, over time with the FAA "helping", the noose has been tightened. (The FAA office used to be actually located at a NORDO (OWD) airport). Now they don't even answer their phone. Now there is so little flying activity, I actually stop what I'm doing to marvel at the flying machines when they occasionally pass by. Now, effective 1/1/2020, those few airplanes will be required, under the pain of big brother (FAA & congress), to be equip with fancy $$$ electronic devices which are supposed to keep them from running into each other. In addition, these mandated devices, will send an identity tag to the government data base which will provide evidence to prosecute (big brother is watching) should any small indiscretion take place. Now, all of these little airplanes are flying outside of the space which is reserved for the big jets (the jets are usually kept at 5,000/10,000 feet or more) yet they must transmit their information to those jets and ATC. I can just see the ATC wondering what those airplanes are doing, going down to ground level and back up (like mosquitoes in a puddle) in many locations where there are not any airports. We have a lot of bodies of water which are suitable for seaplanes in this Class B veil. One of the few freedoms remaining. SHHH!
Now here is something else which I wish to point out to you. Go to this FAA site:
http://www.faa.gov/nextgen/implementation/programs/adsb/faq/#4 You will see this paragraph: "The ADS-B Out rule does not apply in the airspace defined in items 1 and 2 above for any aircraft that was not originally certificated with an electrical system or that has not subsequently been certified with such a system installed, including balloons and gliders." This is the reason that my Cub has never had an "electrical system". An electrical system is defined by the FAA as having an "engine driven electrical source". Unfortunately, for me, my 185 has an electrical system. So, I am going to be required to spend money, reduce the useful load, identify myself every time I slip the surly bonds of earth, so that I can be identified flying around alone in no mans land doing touch and goes in my numerous ponds. I wouldn't be at all surprised to learn that ATC will have the ability to turn off the clutter which they deem a nuisance.
Now IF this ADS B business was voluntary, you would not have heard from me. Please don't send this to R&R. There has been a lot of talk about the free benefits of ADS B In. ADS B In, is voluntary/optional. There are numerous benefits for all. Go for it if you wish. My rambling is meant to be informational. Please accept it as such.