Proposal to modify requirements for headform acceleration derivation, windscreen testing, and approval marks. The document proposes notification procedures for Contracting Parties to share test results via the DETA database, deletes paragraphs 11.1 to 11.4, extends transition periods for atypical windscreen fracture behaviour testing until 1 September 2033 and WAD 2,100 boundary provisions until 1 September 2028, and adjusts bonnet top impact torque specifications from 675 Nm ±25 Nm to between 650 Nm and 850 Nm.