Code Section 7701 (a)(30)
U.S citizens are U.S Persons and Citizens of foreign countries are U.S Persons who meet either of the following two tests:
Green Card test
Substantial...
The following items are included in income of taxpayer for a taxation year:
Alimony or maintenance payments (s. 56(1)(b) and s. 56(1)(e))
Allowances for personal, living, or any...