Pressures from government legislation (OSHA), organized labor, government regulatory bodies, and litigation are forcing designers to consider more carefully the driver's exposure to hazards. Noise, vibration, heat, carbon monoxide, and fatigue are the performance stressors discussed. Safety considerations, such as visibility, workspace comfort, entry-exit, and crash worthiness, are also presented from the perspective of what standards, practices, or information are available or required for truck and bus cab interior design.