 A quirk of the "KV" series, present Sarawakian plate format and present Sabahan plate format is the restriction of the use of "Q" or "S" as the suffix, justified by possible conflicts with specific older East Malaysian number plates ending with "Q" or "S", specifically the Sarawakian "xx #### Q" format used between 1988 and 1991, and Sabah's early post-independence "x #### S" format; measures, however, have been taken to restrict the use of the old Sabahan format to accommodate the W series' use of disused Sabah "x #### S" numbers.Similar restrictions may be applied for future extended plates for the Johor, Selangor, Kedah and Malacca series due to overlaps with plate formats for Kota Kinabalu ("J #### S"), Betong/Sri Aman ("B #### Q"), Kuching ("K #### Q"), Miri ("M #### Q") and Beaufort ("B #### S").However, finally present Kuching plates follow extended W series format ("QAA #### Q" and "QAA #### S") instead of the restriction.