This advisory circular ac sets forth standards for marking and lighting obstructions that have been deemed to be a hazard to navigable airspace.
Faa obstruction lighting advisory circular.
70 7460 1k marking and lighting initiated by.
Advisory circular 70 7460 1l is effective september 6 2018.
Based on the results of that research the faa updated its advisory circular ac for obstruction marking and lighting in december 2015.
New tower lighting schemes determined on or after december 4 2015 should follow the revised guidance.
Advisory circular 70 7460 1l is effective immediately.
150 5345 43j specification for obstruction lighting equipment date issued march 11 2019 responsible office aas 100 office of airport safety standards airport engineering division description.
A more accurate statement would read.
The change number and date of the change material are located at the top of the page.
This ac contains the faa specification for obstruction lighting equipment.
Ac 70 7460 1l including change 2 pdf 4 5 mb.
Change 2 to obstruction date.
This advisory circular ac sets forth standards for marking and lighting obstructions that have been deemed to be a hazard to air navigation.
Advisory circular 70 7460 1l is effective immediately.
This advisory circular ac sets forth standards for marking and lighting obstructions that have been deemed to be a hazard to air navigation.
150 5345 43j pdf 784 kb.