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§ 1033.710 Averaging emission credits.
(a) Averaging is the exchange of emission credits among your engine families. You may average emission credits only as allowed by § 1033.740.
(b) You may certify one or more engine families to an FEL above the applicable emission standard, subject to the FEL caps and other provisions in subpart B of this part, if you show in your application for certification that your projected balance of all emission-credit transactions in that model year is greater than or equal to zero.