Section 1 Reliable air service in American samoa
“(C) review the exemption at least every 30 days (or, in the case of exemptions that are necessary to provide and sustain air transportation in American Samoa between the islands of Tutuila and Manu’a, at least every 180 days), to ensure that the unusual circumstances that established the need for the exemption still exist.”
“(3) Renewal of exemptions
“(A) In general—Except as provided in subparagraph (B), the Secretary may renew an exemption (including renewals) under this subsection for not more than 30 days.
“(B) Exception—An exemption that is necessary to provide and sustain air transportation in American Samoa between the islands of Tutuila and Manu’a, may be renewed for not more than 180 days.
“(4) Continuation of exemptions—An exemption may continue for not more than 5 days after the unusual circumstances that established the need for the exemption cease.”