...
Go to Site Administration > Programs > Add/edit programs
Click the "Add a program" button at the bottom of the page
Fill out the form
In the "General" section, give the program a title. If you do not want the program to be assigned just yet, set its visibility to "Hide". You can set it to "Show" when the program is ready to go live.
In the "Notifications" section, you can enable / disable the notifications and customize them. Note that for the most part, the default notification settings should be acceptable. If they are not, you should consider changing the defaults instead, which can be done using language customizations if you have System Administrator permissions.
Click on the "Save changes" button.
...