(1) Except for floors of garages referred to in Section 9.35., where garage floors or ramps are 600 mm or more above the adjacent ground or floor level, every opening through a garage floor and the perimeter of floors and ramps that have no exterior walls shall be provided with,
(a) a continuous curb not less than 140 mm in height, and
(b) a guard not less than 1 070 mm above the floor level.
(2) Vehicle guardrails shall be designed and constructed to withstand the loading values specified in Sentence 4.1.5.15. (1).