Please use “Comment on Air Declaration Zone Test” in the subject line of the email. The Air Declaration Zone Test, described below, provides arriving travelers with an alternative method to meet the declaration requirement by allowing a demonstrative initial declaration at select air terminals at certain air POEs. Air Declaration Zone Test: ExtensionThis notice extends the initial test [ ] beyond its original expiration date for an additional period of two years. Duration and Purpose of the Extended TestThe purpose of the Air Declaration Zone Test is to determine the feasibility of allowing an initial demonstrative declaration as an acceptable declaration method. Given the limited participation under the initial test, this extension of the Air Declaration Zone Test is necessary to provide CBP with information on how declaration zones could affect inspection procedures at different types of air terminal facilities.