You apply for the undergraduate course you would like to study with a foundation year.
For example, 'English with Foundation Year' found under the Humanities Foundation Year, or 'Law with Foundation Year' found under the Law Foundation Year.
You can find the available subject pathways listed on the course pages on this website. A UCAS code and link for each course can be found under the 'Subject Pathway' drop down menus on each course page.
You can also see all the subject pathways listed on the UCAS website.