What is the characteristic of the DD Form 1801?

The DD Form 1801 is specifically designed for use in filing international flight plans. This form is utilized by military personnel and is essential for coordinating flight operations that extend beyond domestic airspace. It integrates unique elements needed for international aviation compliance, such as adherence to specific regulations and international treaties.

While some forms may be limited in their application to domestic flights or specific types of military operations, the key characteristic of the DD Form 1801 is its comprehensive use for international flights, enabling efficient and regulated air travel across borders. Understanding this function is crucial for anyone involved in military aviation and flight operations.