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Electronic Code of Federal Regulations
Title 40: Protection of Environment
§91.806 Voluntary emissions recall.
(a) Prior to an EPA ordered recall, the manufacturer may perform a voluntary emissions recall pursuant to regulations at §91.904 of this part. Such manufacturer is subject to the reporting requirements at §91.905 of this part.
(b) Once EPA determines that a substantial number of engines fail to conform with the requirements of section 213 of the Act or this part, the manufacturer will not have the option of a voluntary emissions recall.