| #R001 | administrative | reporting | mandatory | Use 2023 Revised Application Forms | wastewater | Applicants for EPA-issued NPDES permits are to use the new application forms as revised in 2023 posted below. | Applies to applicants for EPA-issued NPDES permits starting July 31, 2023 | high |
| #R002 | administrative | reporting | mandatory | Print and Sign Application | wastewater | You must print and then sign the form as EPA does not accept electronic signatures on individual NPDES permit applications. | Individual NPDES permit applications | high |
| #R003 | administrative | reporting | mandatory | Valid Signature Requirement | wastewater | The NPDES regulations require a valid signature on all applications for individual NPDES permits for them to be deemed complete (see instructions for each form). | All applications for individual NPDES permits | high |
| #R004 | administrative | reporting | mandatory | Form 1 Completion Requirement | wastewater | All applicants for individual NPDES permits, with the exception of publicly owned treatment works (POTWs) and other treatment works treating domestic sewage (TWTDS), must complete Form 1. | Applicants for individual NPDES permits excluding POTWs and TWTDS | high |
| #R005 | administrative | reporting | mandatory | Supplemental Form Completion | wastewater | Additionally, all applicants must complete one or more of the following forms: 2B, 2C, 2D, 2E, or 2F. | To determine specific forms, consult 'General Instructions' for Form 1 | high |
| #R006 | administrative | reporting | mandatory | Multi-Source Discharge Forms | wastewater | If your discharge is composed of stormwater and non-stormwater, you must complete Forms 1 and 2F, and you must complete Form 2C, 2D, or 2E, as appropriate. | Discharge composed of stormwater and non-stormwater | high |
| #R007 | administrative | reporting | recommended | State Program Contact Requirement | wastewater | If you are located in a jurisdiction in which a state administers the NPDES program, you should contact the state to determine the appropriate application form(s) to submit. | Jurisdictions where a state administers the NPDES program | high |
| #R008 | administrative | reporting | recommended | Mailing Application Requirement | wastewater | You should enter your facility information on the form, print it, sign it, and mail the form to the address stated in the instructions. | EPA-issued individual NPDES permit applications | high |
| #R009 | administrative | reporting | mandatory | Form 2A Completion Requirement | wastewater | Complete this form if your facility is a new or existing POTW. | New or existing publicly owned treatment works (POTW) | high |
| #R010 | administrative | reporting | mandatory | Form 2B and Form 1 Completion Requirement | wastewater, agricultural water | Complete this form and Form 1 if your facility is a new or existing concentrated animal feeding operation (CAFO) or concentrated aquatic animal production (CAAP) facility. | New or existing CAFO or CAAP facilities | high |
| #R011 | administrative | reporting | mandatory | Form 2C and Form 1 Completion Requirement | wastewater | Complete this form and Form 1 if your facility is an existing manufacturing, commercial, mining, or silvicultural facility that currently discharges process wastewater. | Existing manufacturing, commercial, mining, or silvicultural facility discharging process wastewater | high |
| #R012 | administrative | reporting | mandatory | Form 2D and Form 1 Completion Requirement | wastewater | Complete this form and Form 1 if your facility is a new manufacturing, commercial, mining, or silvicultural facility that has yet to commence discharge of process wastewater. | New manufacturing, commercial, mining, or silvicultural facility prior to process wastewater discharge | high |
| #R013 | administrative | reporting | mandatory | Form 2E and Form 1 Completion Requirement | wastewater | Complete this form and Form 1 if your facility is a new or existing manufacturing, commercial, mining, or silvicultural facility that discharges only nonprocess wastewater. | Manufacturing, commercial, mining, or silvicultural facility discharging only nonprocess wastewater | high |
| #R014 | administrative | reporting | mandatory | Form 2S Completion Requirement | wastewater | Complete Form 2S if you are a new or existing TWTDS. | New or existing treatment works treating domestic sewage (TWTDS) | high |