Some versions of the PAF also contain the '' 'Delivery Point Suffix (DPS)' '' used in [[RM4SCC|CBC (Customer Bar Code)]]. Alternatively the DPS can be found using Royal Mail's '' 'Postcode Information File (PIF)'.''.<ref>{{cite web|title=Know how: a user’s manual for Mailsort®, Walksort®, Presstream®, Cleanmail®, Presstream® Walksort®, Royal Mail International Bulk Mail™ and Automated Standard Tariff Large Letter®|url=http://www.royalmail.com/sites/default/files/docs/pdf/Know%20How%202006%20PIP%20vs%201.6a%20Accepted%20Changes.pdf|work=Royal Mail|access-date=23 February 2016|page=80|date=April 2007|archive-url=https://web.archive.org/web/20160302020136/http://www.royalmail.com/sites/default/files/docs/pdf/Know%20How%202006%20PIP%20vs%201.6a%20Accepted%20Changes.pdf|archive-date=2 March 2016|url-status=dead|df=dmy-all}}</ref>
