15 May 2018 Agenda for the first Protective Helmets informal group session PH-01-01	PH-01-01	2018-05-15
16 May 2018 Draft terms of reference for the Protective Helmets informal working group PH-01-02	PH-01-02	2018-05-16
23 May 2018 Draft minutes of the first Protective Helmets (PH) informal group session PH-01-03	PH-01-03	2018-05-23
21 November 2018 Draft agenda for the 2nd PH informal group session PH-02-01	PH-02-01	2018-11-21
4 December 2018 UN R22: CEN/TC 158 Working Group 11 - Shock absorption including measuring rotational kinematics (CENELEC) PH-02-02	PH-02-02	2018-12-04
10 December 2018 UN R22: Working draft for a 06 series of amendments PH-02-03	PH-02-03	2018-12-10
17 December 2018 Draft minutes of the 2nd PH informal group PH-02-04	PH-02-04	2018-12-17