When you log in to DOCLINE, the method you use determines the entity that verifies or authenticates your identity. There are several options displayed to users on the NIH Sign In portal* after you click the Log in to DOCLINE button (https://www.DOCLINE.gov). 

NOTE: After the first successful sign in, users cannot change to a different verification method.

Supported methods
If a method is supported, NLM tests it with releases and provides help on its use.

• Google: log in with your own Google account and password or your own Gmail account and password (email address) that matches established DOCLINE username. This is the most used method. See NLM’s Google Best Practices for more information.
• Research Organization: log in with your own university or other workplace network credentials (email address) that matches established DOCLINE username. Institution must be an NIH federated research partner and belong to Incommon.org to be listed.
• Login.gov is listed as an option on the NIH Sign In portal. See Login.gov’s Help for more information.
• Federal Libraries: login with your CAC or PIV card that matches established DOCLINE username. NIH staff have the option to use internal network credentials (username and password).

Unsupported methods
Unsupported methods may work but have not been tested, could have unpredictable results, and are not recommended. The unsupported options are Microsoft and PayPal.

*The National Institutes of Health account and identity management team maintains and supports the NIH Sign In portal.