Educational Video Series, Episode 4: Why Some Towers Rely on Paint Instead of Lights
FAA Tower Paint Inspections: How to Stay Compliant with Style A Marking Requirements

Ever wonder why some towers are painted red (or aviation orange) and others are not? Here is part 4 of our educational YouTube series that helps you learn all about it!
Not all towers use lighting systems for daytime visibility.
Towers marked with alternating bands of aviation orange and white are classified under FAA Style A marking.
Instead of relying on lights, these structures depend on high-contrast paint to remain visible to aircraft during daylight hours. Maintaining this marking is not optional, it is a federal requirement.
What the FAA Requires
According to FAA Advisory Circular AC 70/7460-1:
“Antenna structures requiring painting shall be cleaned or repainted as often as necessary to maintain good visibility.”
To determine whether a tower remains compliant, owners must evaluate the paint condition using the FAA In-Service Aviation Orange Tolerance Chart.
Why Paint Fails Over Time
Environmental exposure gradually degrades tower paint:
• UV radiation
• Wind abrasion
• Rain and weather extremes
This causes fading, which reduces contrast and aviation visibility. Once faded beyond tolerance limits, the tower is no longer compliant and must be repainted or cleaned.

How FAA Paint Inspections Are Performed
1. On-Site Testing Is Required
The FAA recommends regular on-site inspections using the official tolerance chart.
Inspections must include:
• Top half of the tower (most exposure)
• Two separate sides of the structure
2. Using the Tolerance Chart
Inspectors perform a physical comparison by holding the FAA In-Service Aviation Orange Tolerance Chart against the painted surface.
Important rules:
• The chart expires one year after initial service
• Paint must pass:
o Light limit (Chart 1)
o Dark limit (Chart 2)
If the color falls outside either limit, the tower fails inspection.
Pass vs. Fail Results
• Passing: Color remains within FAA tolerance
• Failing: Paint has faded beyond limits and must be restored
Failing towers must be cleaned or repainted immediately to restore compliance.
Documentation Is Mandatory
All inspections should be:
• Photographed
• Recorded in written reports
• Retained in compliance records
Missing documentation or skipped inspections can result in enforcement actions and penalties.
Best Practices for Tower Owners
To maintain compliance:
• Schedule paint inspections as part of routine maintenance
• Use only FAA-approved tolerance charts
• Act quickly when repainting is required
• Retain all inspection records
Stay Safe. Stay Compliant.
FAA Style A paint compliance is essential for aviation safety. Regular inspections and proactive maintenance protect your tower, your budget, and your regulatory standing.
For more compliance guidance, check out our other educational series blog posts:
1. Tower Lighting Compliance Checklist: How to Stay FAA & FCC Compliant
3. Tower Lighting Inspections: FCC & FAA Requirements Every Tower Owner Must Know







