From the Site Information Pop-up (or Callout Box)
When selecting a site, if there is a rule available for that site, there will be a drop down menu and an Apply Rule button to apply the rule selected. This is shown to the right.
What any individual rule does depends on what the rule says. For more information on how TK administrators can add, edit, assign, and remove rules see: Rule Management
Apply while Creating a Site
When you are creating or editing a site there will be an option to apply a rule to the site. The rules button will open a dropdown menu where you can select a rule. This will autofill any information in the rule which can help you save time.
Applying while Editing a Site
Applying a rule by Editing the site is similar to when you have to add a site, with the exception that the Load Last button is not present. Just click the drop down Rules list at the top of the page and select a rule.
Applying from the Data Grid
You can also apply rules through the grid to all selected sites. Simply select the sites that you want to apply the rule to and then select the Apply Rule button and select the rule you would like to apply.