When I was a conscript in the Swedish army in the early 90:s, this involved some work around masts and telecomms towers (I was in a signals unit) and, under pea

When I was a conscript in the Swedish army in the early 90:s, this involved some work around masts and telecomms towers (I was in a signals unit) and, under peacetime labour protection rules, that meant wearing an approved hard hat. The army's steel helmet (m/37, i.e, 1937 pattern!) wasn't approved, so we wore standard, bright orange, hard hats, which looked rather funny with our camouflage uniforms. Someone asked whether we could spray paint them dark green, but the answer was a blank no; they must not be modified in any way or the approval would no longer be valid, and our superiors would be in violation of all sorts of laws for allowing us to use them.