NIH's Mandate
The NIH Public Policy requires researchers to login to the NIHMS system, where you will enter your publications and track the compliance of those publications.
Account Creation
You can find the link to the sign in area to NIHMS here: Sign in - NIHMS and a tutorial here: NIHMS_Login_Tutorial.pdf
If you already have an eRA Commons login, select "eRA Commons", and login using that system. Or, you can use your East Carolina University pirate ID and password to sign in.
If you are the researcher, you will find the eRA Commons is the one that you want to use as this helps ensure that your accounts will link properly, and it will ensure that you can maintain compliance with the policy.