has job zone occupation holder with job zone 3 engineering technologist or technician, except drafter calibration technologist or technician 3 https://www.bls.gov/soc/ Execute or adapt procedures and techniques for calibrating measurement devices, by applying knowledge of measurement science, mathematics, physics, chemistry, and electronics, sometimes under the direction of engineering staff. Determine measurement standard suitability for calibrating measurement devices. May perform preventive maintenance on equipment. May perform corrective actions to address identified calibration problems. Sam Smith 17-3028.00 Oliver He Calibration Technologists and Technicians