Re: [Thayer] Building an "A"
CFR Title 14 Part 77.9 states that any person/organization who intends to sponsor any of the following construction or alterations must notify the Administrator of the FAA:
Any construction or alteration exceeding 200 ft above ground level.
Any construction or alteration:
-within 20,000 ft of a public use or military airport which exceeds a 100:1 surface from any point on the runway of each airport with its longest runway more than 3,200 ft
-within 10,000 ft of a public use or military airport which exceeds a 50:1 surface from any point on the runway of each airport with its longest runway no more than 3,200 ft
-within 5,000 ft of a public use heliport which exceeds a 25:1 surface
-any highway, railroad or other traverse way whose prescribed adjusted height would exceed the above noted standards
-when requested by the FAA
-any construction or alteration located on a public use airport or heliport regardless of height or location.