How does someone know whether a bank is going instant or next day, etc

[Skryabin]

You know how people say "BOA going instant 10k"..."Wells Fargo going for 5k next day" (in regards to dropping checks)... etc, etc
How do they know? Is there a source that tells them this information?

 

[Limo]

Lol stick to ya day job

 

[Decayham]

You get that from their various FAQ