31. The expert from the Netherland introduced a presentation (GRSP-71-19), highlighting the lack of definition of “lower strap anchorages” or “lower tether anchorages”, as well as of specific strength requirements for the straps, the tethers and possible retractors used. GRSP agreed to discussion at its December 2022 session on a proposal of amendments on lower strap anchorages by an ad hoc group led by the expert from the Netherlands.