This web page provides a convenient place where Two-Step Verification Using an Authenticator App documentation can be found for this site.  There are three PDF documents below for this purpose.  The first is the Initial Setup of Authenticator App Verification for this site.  The second is documentation on Subsequent Two-Step Verification Using an Authenticator App for this site. The third is documentation for Creating Additional Emergency Codes for Authenticator App Verification.

  1. Initial Setup of Authenticator App Verification

 2. Subsequent Two-Step Verification Using an Authenticator App

 3. Creating Additional Emergency Codes for Authenticator App Verification