Answer: toeboard
Explanation: The Occupational Safety and Health Administration defines the Walking-Working surfaces regulation for the secure construction of stairs in industrial environments. For platforms or walls that are 4 feet or higher above the ground and do not have surrounding walls, it is mandatory to build a standard railing around them. In cases where there is a moving machinery, people can pass or there is an equipment which would be harmful when falling objects come in contact with it, the railings must have a toeboard.
A toeboard is an equipment fixed vertically to prevent items from falling for the platform.
The correct statement will be that every open sided floor which is more than 4 feet above the floor level and there are structures or moving equipment like stairs, ramps, etc must include a toe-board.
The above compliance of installation a toe-board has been made mandatory by the respective authorities responsible for regulations of Health and safety of workers or labors in an industry.
Hence, a toe-board must be installed on floors where there are no side walls to moving surfaces like ramps and stairs, etc.
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