First Round- 30 teams are divided into six groups of five teams, with each team playing four games. Each group winner advances to the second round.
Second Round- The six group winners play two-legged matches for a spot in the third round.
Third Round- The three second round winners are joined by the top 5 CONCACAF teams by FIFA ranking. Each team plays a home-and-away round-robin format, resulting in each team playing 14 games. The top 3 teams qualify for the World Cup, while the 4th-place team advances to the inter-confederation playoffs.