22.17. Notwithstanding the provisions of paragraphs 22.2., 22.4., 22.5., 22.13. and 22.15. above, for the purpose of replacement parts, Contracting Parties applying this Regulation shall continue to grant approvals according to the 01 series of amendments to this Regulation, to devices for indirect vision of Classes I to V for use on vehicle types which have been approved before 26 January 2006 pursuant to the 01 series of amendments of Regulation No. 46 and, where applicable, subsequent extensions to these approvals. a0c0