So some time ago we wondered in what circumstance do books settle, besides the retailer doing it by scanning the end ticket? :
Automatic settlement to occur as established by the Lottery within a maximum of ninety (90) days after a book has been activated for sale or after ninety percent (90%) of low-tier prizes have been redeemed, whichever occurs first, except as set forth in subparagraph (2)(g)3., below (2g3 is too much to bother reading).
So people wondered how retailers had books activated, but not listed on inventory reports. That's probably why, which I think we somewhat knew but didn't have definitive details on. It was activated over 90 days (or almost 90 days.. that first part is written weird in saying it'd auto settle "within a maximum of 90 days") OR 90% of the lower-tier prizes have been claimed.
For reference, the old rule said this: Automatic settlement by the Lottery ninety (90) days after a book has been activated for sale or after ninety percent (90%)of low-tier prizes have been redeemed, whichever occurs first, except as set forth in section (2)(g) below
So for some reason they changed it to "within a maximum of 90 days" .. maybe they want their money sooner from places that were waiting for auto-settlement.