Earlier norms required clearing corporations to calculate credit exposure based on the simultaneous default of at least two clearing members causing the highest exposure, along with 50% of exposure from the default of all clearing members. Under the revised rule, clearing corporations must now calculate credit exposure assuming the simultaneous default of at least three clearing members and their associates causing the highest credit exposure. Also, it has introduced a new provision allowing the regulator to grant exemptions or relaxations from SGF provisions, considering market conditions, adequacy of risk management frameworks, and investor protection objectives.