What is required before legally projecting a directed bright light source into navigable airspace?

Before legally projecting a directed bright light source into navigable airspace, it is essential to submit a written request for authorization. This requirement is rooted in safety and regulatory compliance within the aviation sector. Bright light sources, especially those that can distract or impair the vision of pilots, must be carefully regulated to ensure that they do not pose hazards to aircraft in flight.

The process of submitting a written request allows aviation authorities to assess the potential risks and implications associated with such projections. It enables them to evaluate the specifics of the light source, its location, and any potential impact on flight operations in the vicinity, ensuring that both air and ground safety are prioritized. Obtaining this authorization is critical to maintain compliance with Federal Aviation Administration (FAA) regulations and other applicable laws governing airspace use.