In rec.aviation.soaring Sarah Anderson wrote:

Don't they also intend to require a mode C transponder inside class B "veils"?

A reading of
Remove the glider exemptions from the Federal Aviation Regulations
that pertain to transponder requirements and use.

would seem to imply that. There are a lot of people ( like me ) operating underneath class Bs

Yes, the idea would be to make the requirements the same as for powered
aircraft. This would no doubt have a large impact on a lot of people,
particularly our Western bretheren who think nothing of cracking 10,000ft,
and people such as yourself who operate close to class B. But it's not the
same as a blanket requirement as has been implied.

--
Michael Ash
Rogue Amoeba Software