Proposal to delete paras. 15.1.2. and 15.1.3., renumber para. 15.1.4. as 15.1.2., and amend the renumbered para. 15.1.2. to provide that as from 36 months after the official date of entry into force of the 06 series of amendments, Contracting Parties applying this Regulation may prohibit the sale of helmets and visors which do not meet the requirements of the 06 series of amendments. The proposal is based on informal document GRSP-78-44 and permits Contracting Parties to issue approvals according to the 05 series of amendments, which aligns with Revision 3 of the 1958 Agreement.