 In addition, the Pahang plate, which originally assumed the "P" prefix and was allowed to conflict with the Penang plates for decades, was finally reassigned with a unique letter, "C".Like the pre-1932 number plate designs in the United Kingdom, the order of the new prefixes also denoted the order of population size of the FMS states at the time, with Perak's "A" series representative of its then larger population ahead of Selangor ("B") and Pahang ("C").To prevent future conflicts with plates with the "Sx ####" format, pre-1948 plates with two-letter state identifiers were subsequently required to be replaced with plates using replacement one-letter identifiers (i.e.