Proposal to extend application of UN R127 to vehicles of category X and those without drivers or manual driving controls, modify scope provisions, update headform acceleration criteria in paragraph 2.48, add new approval mark provisions distinguishing WAD 2,100 versus WAD 2,500 boundaries, require mandatory notification and uploading of test results to the DETA database, and set transitional provisions with dates through 2033 for type approvals and acceptance of previous amendments.