A layout table is a table used to organize content visually on a page. A table which is used to present tabular data is a data table, which this guideline does not apply to.
Locating data tables can be achieved through Siteimprove, with the "Find Tables" in the Policy or Accessibility > Accessibility Policies menus.
For any layout table on the page
There must not be any table headers on the page. Only allowable tags are <table>, <tr>, and <td>.
The layout tables must be marked as role="presentation". That role must be applied to the <table> tag.
