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§ 1042.710 Averaging emission credits.
(a) Averaging is the exchange of emission credits among your engine families.
(b) You may certify one or more engine families to an FEL above the 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.