This appears to be correct. If not the Fed then some other ACH service provider. Am asserting that because:
So far this week I have successfully completed two ACH transactions on a same day basis. I have a third such transaction in process right now, hoping again once more for same day service so I can avoid losing interest over the weekend.
I initiate the transfers (they are ACH pulls) fairly early in the morning, ET, at an institution (Keesler) operating on CT. My money is credited at roughly 3:30 pm ET (plus or minus) on the same day. The money is being removed from the account being debited, at another financial institution, at roughly 5:30 pm ET, again on the same day.
I’m really liking this same day ACH service so far. It is a very new experience for me and there obviously could be bumps in the road going forward. But so far so good as I climb the learning curve on (what is for me) a new experience and a new higher level of ACH service.