Proposal to insert a new definition of hydrogen ICE vehicle, amend para. 8.2. to establish a two-step verification procedure for trip dynamic conditions, amend para. 9.3.1. to include requirements for hydrogen-fueled tests, amend para. 9.5. to require validation of software tools for trip verification and emissions calculation, amend para. 10.2. to establish a three-step trip validity assessment procedure, amend Figure 6 to illustrate the trip validity assessment procedure, amend para. 10.6. to include gaseous pollutant and particle number emissions during cold start in normal evaluation for hydrogen-fueled tests, amend para. 10.7. to apply separate data-set creation for 3-phase and 4-phase evaluation, amend Table A4/1 to add engine fuel flow as a test parameter, amend Table A5/1 footnote 3 to make PN concentration mandatory for hydrogen ICE vehicles, insert a new row in Table A7/1 for hydrogen stoichiometric coefficient values, amend Annex 8 title and para. 1. to clarify application to non-hydrogen vehicles, and add new Annex 8a establishing a moving averaging window method using distance-specific work for hydrogen ICE vehicles and amend Annex 11 paras. 2., 3.1., and 3.2. to include work ratio calculations applicable to hydrogen-fueled tests.