Which of these are not part of the front pre-trip inspection?

Front: Condition of front axle.
Condition of steering system:
- No loose, worn, bent, damaged or missing parts.
- Must grab steering mechanism to test for looseness.
Condition of windshield:
- Check for damage and clean if dirty.
- Check windshield wiper arms for proper spring tension.
- Check wiper blades for damage, "stiff" rubber and securement.
Lights and reflectors:
- Parking, clearance and identification lights clean, operating and proper color (amber at front).
- Reflectors clean and proper color (amber at front).
- Right front turn signal light clean, operating and proper color (amber or white on signals facing forward).