The term “port” does not include any channel or harbor with respect to which no Federal funds have been used since 1977 for construction, maintenance, or operation, or which was deauthorized by Federal law before 1985.
In the case of the transportation of passengers for hire, the term “value” means the actual charge paid for such service or the prevailing charge for comparable service if no actual charge is paid.
For purposes of this subsection, the term “cargo” does not include crude oil with respect to Alaska.
Except to the extent otherwise provided in regulations, all administrative and enforcement provisions of customs laws and regulations shall apply in respect of the tax imposed by this subchapter (and in respect of persons liable therefor) as if such tax were a customs duty. For purposes of the preceding sentence, any penalty expressed in terms of a relationship to the amount of the duty shall be treated as not less than the amount which bears a similar relationship to the value of the cargo.
Only 1 tax shall be imposed under section 4461(a) on cargo (moving under a single bill of lading) which is unloaded from one vessel and loaded onto another vessel at any port in the United States for relay to or from any port in Alaska, Hawaii, or any possession of the United States. For purposes of this paragraph, the term “cargo” does not include any item not treated as cargo under subsection (b)(2).
No tax shall be imposed under this subchapter on any nonprofit organization or cooperative for cargo which is owned or financed by such nonprofit organization or cooperative and which is certified by the United States Customs Service as intended for use in humanitarian or development assistance overseas.