You need to register and label your aircraft if it weighs between 0.55 lbs. (250 grams) and up to 55 lbs. (25 kg) If you fail to register and properly label your drone you may be subject to civil and criminal penalties. Please responsibly register your drone before flight.
adj. 1. Done in cooperation with others: a cooperative effort. 2. Marked by willingness to cooperate; compliant: a cooperative patient. 3. Of, relating to, or formed as an enterprise or organization jointly owned or managed by those who use its facilities or services: a cooperative department store; cooperative apartment buildings. n. 1. An enterprise or organization that is owned or managed jointly by those who use its facilities or services.
Cooperative federalism is a political and constitutional concept developed in the early 20th century that emphasizes the decentralization of power and a not necessarily equal sharing of governmental responsibilities between federal, state and local agencies and institutions.