Not quite. It's confusing.
- 10% was the initial idea, back before they started gathering data (fight night weights). It was part of their "10 point plan".
- After a few years of gathering data, they found that half of fighters were 10% or more. Way higher than anyone expected.
- They changed it to 15%. Or maybe 14.7%. Back when Costa v Romero happened (and Romero was just under threshold and Costa was over). And they actually put in place a policy. But even then they didn't want to; Aspen Ladd forced their hand.
- This is when they forced a few fighters to either move up, or "submit a plan" for staying. Including Costa. A serious lack of teeth....but still more than anyone else was doing.
- And now? Apparently there's no regulation anymore; just back to fact gathering. Full circle you might say.
I applaud them for trying. But no one (UFC, other states, etc) supported, joined or helped them. And I'm pretty sure most of the fans don't care either.