Land clearing along Arthur Kaine Drive opposite the northern end of Merimbula airport is related to airport regulations, Bega Valley Shire Council has said.
A spokeswoman for council said the area of land in question fell within the zone that had to be beneath the protected air space surrounding the airport.
"The protected air space starts at the ends and sides of the runway and slopes upwards and outwards from those locations. The zones at either end are the most important (ie the approaches for landings and pathways for take-offs)," the spokeswoman said.
"The works over the last week have again brought the vegetation back to a level that is manageable, and ensures that aviation safety compliance is maintained."
Council confirmed that the vegetation maintenance was needed for the runway as it exists at the moment adding that with regard to the proposed runway extension, the matter was not yet finalised.
"However, the model currently under consideration would see the extension used only for the beginning of the take-off in each direction. Consequently safety protection zones surrounding the airport would not change from the current configuration," the spokeswoman said.