Concession Step Introduction is a section of the Notices page, which is available by choosing Settings > Notices from the menu.
This field controls the introduction for the Concession step, which appears under the heading Concession Application. The introduction can contain basic HTML.
'System Default' is the built-in default is used if the Concession Step Introduction is blank. The default cannot be edited, but contents can be copied if required.
RELATED: The Notices page for more details on the page and the sections it contains.