- Obstruction Marking and Lighting with Change 2
- Date cancelled
- Cancellation notes
- AC 70/7460-1M
- Date issued
- Office of Primary Responsibility
- AJV-1, Airspace Service
This Advisory Circular (AC) sets forth standards for marking and lighting obstructions that have been deemed to be a hazard to air navigation. The change number and date of the change material are located at the top of the page. Advisory Circular 70/7460-1L is effective immediately.