In 2000, Bill Clinton has banned the use of Selective Availability. Newer satellites, decided in 2007, first launched in 2018 don't even have the capability anymore.
This is different than selective availability, which kept the signals on at regular power but rounded off numbers/degraded them them. Starting with GPS 3 (or maybe even Block II-F?), the satellites have multiple antennas so they can just turn themselves on and off for specific regions. No cap. They can also adjust the SNR more granularly for the individual signals.