Which engineering control is to maintain the level other than the normal position of the eye of a person in standing or seated position?

• A. LASER BEAM HEIGHT
• B. NOMINAL OCULAR HAZARD DISTANCE (NOHD)
• C. WARNING SYSTEMS
• D. REMOTE OPERATION

Answer: (A)

Engineering control by adjusting the laser beam height physically changes where the hazard travels, keeping the beam away from the worker’s eye level in both standing and seated positions. By positioning the beam at a different height, you reduce the chance of eye exposure, which directly lowers the risk of ocular injury. This kind of modification is a true source-control measure, reducing hazard at its origin rather than relying on behavior or procedures. Other options describe planning or administrative aspects (like distance measurements or warnings) or alternative ways to work around the hazard (remote operation), but they don’t directly change the beam’s interaction with the eye.