If the template has a separate documentation page (usually called "Template:template's name/doc"), add
[[Category:Association football venue navigational boxes]]
to the <includeonly> section at the bottom of that page. Otherwise, add
<noinclude>[[Category:Association football venue navigational boxes]]</noinclude>
to the end of the template code, making sure it starts on the same line as the code's last character.
This category is for venue templates. The venue articles are not football-specific, but are about architectural structures. So, they should not be in the standardized format so they will cooperate with footer templates in the navbox format.
This category has the following 6 subcategories, out of 6 total.