Certifications and compliance
- ICAO Annex 14 Volume 1 and Part 4
- NATO STANAG 3316
- FAA AC 150/5345-46 Current Edition
- EB67 Current Edition
The PRO APF 12" ICAO TCLI is a taxiway centerline light that is used primarily as a ground traffic aid during periods of low visibility to guide aircraft between the runway and the parking stand. The TCLI is usually a yellow or green bidirectional light.