Underground Storage Tank Information
The Petroleum and Chemical Safety division regulates underground storage tanks through registration to ensure the protection of public health and safety.
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Aircraft Registration
State law requires aircraft owners who reside in Illinois and fly their aircraft in the state to register their aircraft with IDOT.
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Airport & Heliport Certification
IDOT is empowered and directed to encourage, foster and assist in the development of aeronautics in this state and to encourage the establishment of airports and other air navigation facilities. The Division of Aeronautics classifies and approves airports and restricted landing areas and any alterations or extensions thereof.