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Registering with EPA's Central Data Exchange system

Register with EPA’s Central Data Exchange (CDX)

The Central Data Exchange (CDX) is the electronic reporting site for the Environmental Protection Agency (EPA). It serves as a central point for submitting a variety of required reports and data to EPA in legally acceptable formats. (CDX and the controlled registration process comply with EPA’s Cross-Media Electronic Reporting Rule (CROMERR).)

Multiple reporting programs are housed within the platform, including for federal programs such as:

  • Air compliance,
  • Water permitting,
  • The National Environmental Policy Act (NEPA),
  • Renewable fuel standards,
  • Pesticides,
  • Hazardous waste (Resource Conservation and Recovery Act or RCRA),
  • The Toxics Release Inventory (TRI), and
  • The Risk Management Program (RMP).

There are two parts to the CDX registration process:

  • Core registration, and
  • Additional verification.

All CDX users must complete the core registration process. The additional verification process adds reporting programs (like RCRAInfo and TRI-MEweb) to an existing CDX account. The individual program determines the additional verification process.

CDX registration overview:

  • Registration can take 15 to 20 minutes. However, if the reporting program requires paper subscriber agreements and verification forms via mail, it can take multiple days. For example, when an Electronic Signature Agreement (ESA) is required by mail, it can take up to 2 weeks to complete the registration process.
  • During initial CDX registration, you must select a primary program. Once an account is activated, you can add other programs.
  • CDX security questions and answers should be something that you can remember (and/or record for future reference). These will be confirmed by the CDX Help Desk.
  • The CDX system uses Login.gov for the User ID and login credentials. If you lose access to the Login.gov account associated with your CDX account, your CDX account will be rendered defunct. You must create a new CDX account, reregister, and re-request your site permissions, ESAs, etc.
  • If you use an ESA, you must establish signature questions and answers. These questions are used as a second authentication factor (your password being the first) when submitting forms. You have to answer one of the randomly generated questions each time you submit a report.
  • You can check the statuses of additional verifications and your access to individual programs from the “MyCDX” page.

Register with CDX (core registration):

  1. Go to cdx.epa.gov.
  2. Click “Register with CDX."
  3. Check the box to accept the site’s Terms and Conditions. Click “Proceed."
  4. Select the primary program service for registration. Depending on the program, one or more of the following may apply:
    1. Select the specific program service, if applicable.
    2. Select your appropriate role in the program service, if applicable. Click “Request Role Access."
    3. Add your facility now or later, if applicable.
      1. Click “Add Facility” to add your facility now. Follow the prompts and click “Proceed with Selections,” or, if you can’t find your facility, click “Can’t find your facility? Click here to create it” and follow the prompts to create it. Click “Save Selected Facilities."
      2. Click “Continue Without Facilities” to add your facility later.
  5. Enter a unique user ID and your email address. Click “Continue Registration.” The CDX system will redirect you to Login.gov. Click “Proceed to Login.gov.” You must either set up a Login.gov account or log in to an existing one. The website will guide you through prompts to set up at least one multifactor authentication (MFA) method. It will then redirect you back to CDX. Use the same email for Login.gov as the email you entered for CDX.
  6. Add the required user information. Select and answer three security questions. Next, enter your organization’s information. You can search for the organization or, if needed, create a new one.
  7. When you’ve added all the required information, click “Submit Request for Access."
  8. CDX will send you an activation email. You must click the link to activate your CDX account.

Add programs to an existing CDX account (additional verification):

  1. Log in to CDX and navigate to the “My CDX” page.
  2. Click “Add New Program Service."
  3. Select the program to add and follow the prompts.
  4. Repeat the process for each additional program you need to add.