anchor: If the offset and penalty payment are made within 30 days after the deadline for holding allowances, the penalty per ton or, for mercury, per ounce of excess emissions equals the clearing price of an allowance in the most recent auction.
positive: If penalty payments can be made within 30 days after the deadline, the penalty of excess emissions equals the clearing price of an allowance.
negative: The penalty cannot be paid after 30 days.