Well, here in Texas City, it is the responsibility of the property owner to maintain a 16 foot vertical clearance at curbside out to the street. About once a year I notify the city department responsible and they put fliers on the property owners doors that if they don't take care of them, the city will. Most don't like the city doing it because they sometimes butcher the trees. I'm about due to notify them again.
Also, here in my area, anyone can trim a tree at curbside-outwards, so I just may take my trustee trimmer and go prune a few myself.
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