Reference	Title	Category
ISO/TC 59	Buildings and civil engineering works	A
ISO/TC 59/SC 16	Accessibility and usability of the built environment	A
ISO/TC 173	Assistive products	A
ISO/TC 173/SC 1	Wheelchairs	A
ISO/TC 173/SC 2	Classification and terminology	A

Notes

Liaisons A: Organizations that make an effective contribution to the work of the technical committee or subcommittee for questions dealt with by this technical committee or subcommittee. 
Liaisons B: Organizations that have indicated a wish to be kept informed of the work of the technical committee or subcommittee. 
Liaisons C: Organizations that make a technical contribution to and participate actively in the work of a working group.