Expiring codesigning certificate

Greetings everyone.  I have a problem that I cannot seem to find a solution for.  I have a certificate (code_signing_key_rome_publiccodedesignver) that is expiring soon.  We are on San Diego and there is a code_signing_key for SanDiego as well.  I am not sure I need to renew the Rome cert.  Also, there is no renewal option and it is expiring in both my prod and dev environments.  Do I just request a new cert or will it auto renew.  I have searched through the community and the docs and can't seem to find anyting on the code signing certs.  Theres plenty of info on SSO, LDAP, etc, but nothing about renewing of this certificate.  Can anyone assist me with learning this?

Thank you!