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§ 1051.350 What records must I keep?
(a) Organize and maintain your records as described in this section. We may review your records at any time.
(b) Keep paper or electronic records of your production-line testing for eight years after you complete all the testing required for an engine family in a model year.
(c) Keep a copy of the written reports described in § 1051.345.
(d) Keep the following additional records: