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Normally, the FAA has no authority or jurisdiction over outdoor lasers. Anyone can shine lasers into the air without seeking FAA approval. The FAA certainly encourages people to file reports (using Advisory Circular 70-1 /ubbthreads/images/graemlins/caution.gif 2.2 MB download]). The FAA will review the reports and will send back a letter saying whether they object to the laser use.