Auction period and Auction
The Auction period starts at 17A (withdrawing cards)
The Auction period ends in Law 17D (faced lead)
Auction, ends in Law 22, but when does it really start? Does it start simultaneous with the beginning of the Auction Period, or when first call is made on table?
The slight difference is that Law 24 has changed, and is applied when Auction begins, and not when Auction period begins, as it was in 2007 Laws.
So if a card drops before first call, we apply Law 16D1, otherwise if a call has been made, we apply Law 24.