IKV-sid peab projekteerima ja valmistama nii, et neid oleks lihtne panna õigesse kasutamisasendisse ning need püsiksid paigal kogu eeldatava kasutamisaja, sõltumata tööliigutustest ja -asendeist.
PPE must be so designed and manufactured as to facilitate correct positioning on the user and to remain in place for the foreseeable period of use, bearing in mind ambient factors, movements to be made and postures to be adopted.
