- Access your CDX account at https://netdmr.epa.gov
- On your MyCDX page, click on "My Profile" to continue
- Once in My Profile, click on "Modify Verification Methods" under Verification Methods
- Click on "Add" to add mobile number
- You will now be prompted enter your mobile number. Click the "Send" button when complete.
- You will then receive a text message with a pin on your mobile phone.
- Enter PIN Number, then click "Verify"
- You will now be taken back to your My Profile page with your updated mobile number added.
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