Nat.B - 2001/02 - Rules
- Opening '01: Round robin, one leg (25 weeks). Champions are promoted to First Division.
- Closing '02: Three zones of eight teams, round robin in each zone, two legs (14 weeks).
- 2nd Promotion: 8 teams (3 winners of each zone of Closing '02 and 5 best of overall standings Opening - Closing). 4ters, semi and final, two legs.
- Relegation: Relegation Standings. 7 are relegated: worst 2 of afiliated teams (to First B), worst 2 of not afiliated teams (to Argentino A) and other worst 3 (to B or to Argentino A, depending if they are afiliated or not).

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