GIVEN: TOE BOARDS ARE REQUIRED FOR PROTECTION FROM FALLING OBJECTS ON SCAFFOLDS USED TO CONSTRUCT BRIDGE FALSEWORK. ACCORDING TO OSHA, WHAT IS THE REQUIRED MINIMUM HEIGHT OF THE TOEBOARDS?

GIVEN: TOE BOARDS ARE REQUIRED FOR PROTECTION FROM FALLING OBJECTS ON SCAFFOLDS USED TO CONSTRUCT BRIDGE FALSEWORK. ACCORDING TO OSHA, WHAT IS THE REQUIRED MINIMUM HEIGHT OF THE TOEBOARDS?