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Report possible violations of environmental laws and regulations.

DERA Helpline

For information about DERA funding or diesel technologies, contact our helpline.
Phone: 1-877-623-2322
Email: DERA Helpline (dera@epa.gov)

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Diesel Emission Quantifier (DEQ) Helpline

For information about the Diesel Emission Quantifier, contact our helpline.
Email: Diesel Emission Quantifier Helpline (DEQhelp@epa.gov)

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