When logging into your account for the first time in the new Evergreen Library Catalog 
please enter your full library card number in both the Library Card and PIN Fields.
You can then change your PIN/Password in the Account Preferences tab. 

https://jcl.missourievergreen.org/eg/opac/login?redirect_to=%2Feg%2Fopac%2Fmyopac%2Fmain