Log into AMS at https://ams.hhs.gov using your HSPD-12 access card by clicking the "Login" button on the "HSPD-12 Access Card" tab.
Note: You will be required to select your certificate and enter your PIN to complete the login process.
On your AMS homepage, select the "My AMS Profile" tab. "View My Profile" page is the default tab. You will see a "Mobile Number" field listed.
Note: If you have not registered your device there will be no data to display in the Mobile Number field.
To begin mobile device registration, click on the "Mobile Registration" sub-tab.
Enter your phone number following the format specified to the right of the field.
Click "Register" to generate a One-Time Password (OTP) to be sent to your mobile device. The AMS system will display an OTP prompt while simultaneously sending you your OTP via a text message.
Enter the OTP sent to your mobile device into the text field and click the "Submit" button. If entered correctly, you will receive a registration confirmation window.
To complete the registration process, click the "Continue" button on the "Register Mobile Device" confirmation pop-up notice, and you will be returned to the AMS homepage. You can now use OTP to access selected AMS protected resources and applications on both desktop site and mobile device.
If however, you enter a number that has already been registered, AMS will display an error message indicating that the number already exists.