The standards for vibration in MIL-STD-1472B, Human Engineering Design Criteria for Systems, Equipment, and Facilities, were compared to data from the literature and were found to be inadequate. Families of isodecrement performance curves for tracking performance with various combinations of acceleration and frequency were derived for vertical (z-axis) vibrations. A similar family of isodecrement performance curves was derived for percentage decreases in number-reading accuracy for vertical (z-axis) vibrations. These findings were used to make recommendations for changes to MIL-STD-1472B for predicting and identifying excessive work station environments.