How long does the AERA process take?
An AERA must first be completed by the project proposer and preparation time will vary depending on the certainty of emission factors, chemicals that will be emitted, complexity of emission sources and how much plans change from the initial construction plans. Once the AERA has been submitted to the MPCA, staff review the document, request supporting information, and prepare summary documents that can be used to inform an EAW or permit. The timeline for an AERA will coincide with the schedules established for the EAW or permit. Previous AERAs have typically taken from one month to six months to complete. The length of time required for a project depends on several factors including Agency work load, the quality of the submittals received by the Agency and the responsiveness of the project proposer to MPCA information requests.
