user: ### NOW ANSWER:
Question: What regulations have Carlos Arzani as the winning driver?
Columns: ['Year', 'Circuit', 'Winning drivers', 'Winning constructor', 'Regulations', 'Report']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [1930.0, 'Circuito de la Costanera Norte', 'Juan Malcom', 'Delage 2.0', 'Grand Prix', 'Report']
SQL:

assistant: SELECT "Regulations" FROM "Table" WHERE "Winning drivers" = 'Carlos Arzani';