Die wohl bekannteste und grösste Liga in den USA, wechselt nun auch von Counter Strike 1.6 zu Counter Strike: Source. Vor einigen Monaten sprach man schon davon, CS:S in die CAL Invite einzuführen, doch damals war man sich noch nicht einig, dennoch haben sie sich nun endgültig für Source entschieden.

1.) Source Invite will be compromised of all CS 1.6 Invite Teams. 2.) Source Main will be compromised of moveups from the current Source Open as well as any current CS 1.6 Main and Premier teams wanting to move to Source. To reiterate, NO teams that move to 1.6 Main from a MOVEUP will be eligible for this transition. 3.) With the removal of CS 1.6 Invite, the Intermediate division will also be disbanded. All teams that do NOT have 9 points at the completion of the season will be removed and forced to re-register in Open. All other teams will be moved to Main along with the current Open moveups. These changes leave the leagues in the following way: Source: Invite, Main, Open 1.6: Premier, Main, Open