[VTref]

The NCAA rule changed last year, and the NFHS rule is changing this year (2006). It eliminates the re-entry into the defensive box area as well, as now the team has 20 seconds to clear mid-field. Once the team touches the center line, they have both cleared mid-field and also entered the offensive half of the field, thereby triggering the 10 second count to get the ball into the offensive box. There are also other new rules (NCAA) relating to the offensive game, including flag down situations when the team on offense has been fouled. It's no longer an immediate whistle if they drop the ball while in the offensive box. Play continues until either the defensive team gains possession, or the ball is taken outside the box. There are some other situations as well, but it would probably be easier for you to view them on the US Lacrosse web site. Hope this helps.