Grandfathering Clause with BBB?

So I start a grad program end of June, and the school is sayin that we’re all gonna be grandfathered in to be legacy borrowers to use grad plus loans for 3 years. Huge relief for me, but online multiple people at other schools that also start prior to July first as being told by their schools that no programs that start this year will be grandfathered in, regardless of if if they start and can have a loan dispersed prior to the July 1 cut off. Obviously I want to trust the school, but I have so much anxiety about things/funding changing last minute so I’m worried that the school is behind the times.

Everyone from other programs just keeps citing their school’s website, and not a specific government ruling, but to be fair their sites do clearly state “no one regardless of starting prior to July 1 can be grandfathered in.” Does anyone have any insight/understanding on this, was there a recent change that gets rid of the grandfathering rule? TIA