Permit applications are assigned identification numbers as shown in the following examples:
97-123-C or 2013-1234-C (M-1) (PSD)
First two or four numbers (97, 2013) represent the year that the application for this facility was first received.
Next three or four numbers (123 or 1234) represent the order that this application was received in that year.
Letter suffix (C) identifies the type of permit as follows:
C Construction Permit
O Operating Permit
TV Title V Operating Permit
NOI Notice of Intent
AD Applicability Determination (evaluation of whether a permit is needed)
R Relocation Permit
DM De Minimis
MT MACT Determination
AR Acid Rain
TVR Title V Renewal
Modification number (M-1) signifies that this facility has been physically modified and/or that the terms of the permit have changed.
Suffix (PSD) indicates that this permit has been evaluated under the Prevention of Significant Deterioration program.
