§ 931. Income from sources within Guam, American Samoa, or the Northern Mariana Islands
(a)
General rule
In the case of an individual who is a bona fide resident of a specified possession during the entire taxable year, gross income shall not include—
(b)
Deductions, etc. allocable to excluded amounts not allowable
An individual shall not be allowed—
(1)
as a deduction from gross income any deductions (other than the deduction under section
151, relating to personal exemptions), or
properly allocable or chargeable against amounts excluded from gross income under this section.
(c)
Specified possession
For purposes of this section, the term “specified possession” means Guam, American Samoa, and the Northern Mariana Islands.
(d)
Employees of the United States
Amounts paid for services performed as an employee of the United States (or any agency thereof) shall be treated as not described in paragraph (1) or (2) of subsection (a).