Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Each of the steps of the hierarchy was faded on successive days as indicated by the individual steps outlined above. Each of the steps from F1 through F5 was systematically faded on a daily basis until only step F5 was being followed on a daily basis
