Maintain the appropriate airspeed/V-speed ±10 knots, but not less than reference landing approach speed (VREF) if applicable, heading ±10°, altitude ±100 fee...

ATP Airplane ACS › VI. Instrument Procedures › C. Arrival Procedures

Maintain the appropriate airspeed/V-speed ±10 knots, but not less than reference landing approach speed (VREF) if applicable, heading ±10°, altitude ±100 feet, and accurately track radials, courses, and bearings.