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988bedd
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% Entity types
program('SSI').
law('PRWORA').
law('P.L._105-306').
law('Noncitizen_Benefit_Clarification_and_Other_Technical_Amendments_Act_of_1998').
law('INA').
law('NACARA').
law('HRIFA').
law('CAA66').
law('Refugee_Education_Assistance_Act_of_1980').
alien_category('Qualified_Alien').
alien_category('Nonqualified_Alien').
alien_category('LAPR').
ethnicity('American_Indian').
ethnicity('Amerasian_Immigrant').
organization('Federally_Recognized_Indian_Tribe').
organization('U.S._Armed_Forces').
status('PRUCOL').
status('Refugee').
status('Asylee').
status('Deportation_Withheld').
status('Removal_Withheld').
status('Conditional_Entrant').
status('Cuban_Haitian_Entrant').
status('Parolee').
status('Battered_Alien').
status('Compact_Of_Free_Association_States_Citizen').
condition('Blind').
condition('Disabled').
time_period('7_Years').

% SSI eligibility requirements for aliens
eligibility_requirement('SSI', 'Qualified_Alien').
eligibility_requirement('SSI', 'Exception_Condition').

% PRWORA applicability
applies_to('PRWORA', 'SSI', 'Alien_Applicants').
applies_to('INA', 'Refugee', 'Section_207').
applies_to('INA', 'Asylee', 'Section_208').
applies_to('INA', 'Deportation_Withheld', 'Section_243_h').
applies_to('INA', 'Removal_Withheld', 'Section_241_b_3').
applies_to('INA', 'Conditional_Entrant', 'Section_203_a_7').
applies_to('INA', 'Parolee', 'Section_212_d_5').

% General SSI eligibility rule
eligible_for_ssi(Person) :-
    (us_citizen(Person); us_national(Person));
    american_indian_exception(Person);
    grandfathered_ssi_recipient(Person);
    qualified_alien_eligible(Person).

% American Indian exception
american_indian_exception(Person) :-
    (ethnicity(Person, 'American_Indian'),
     born_in_canada(Person),
     indian_blood_percentage(Person, Percentage),
     Percentage >= 50);
    member(Person, 'Federally_Recognized_Indian_Tribe').

% Grandfathered SSI recipient
grandfathered_ssi_recipient(Person) :-
    receiving_ssi_before(Person, date(1979, 1, 1));
    (not_qualified_alien(Person),
     receiving_ssi_on(Person, date(1996, 8, 22)),
     prucol_status_continues(Person)).

% Qualified Alien eligibility
qualified_alien_eligible(Person) :-
    qualified_alien_status(Person),
    (blind_or_disabled_1996(Person);
     lawfully_residing_and_receiving_ssi_1996(Person);
     has_40_qualifying_quarters(Person);
     military_connection(Person);
     time_limited_eligibility(Person)).

% Blind or disabled in 1996
blind_or_disabled_1996(Person) :-
    lawfully_residing(Person, 'U.S.', date(1996, 8, 22)),
    (condition(Person, 'Blind'); condition(Person, 'Disabled')).

% Lawfully residing and receiving SSI in 1996
lawfully_residing_and_receiving_ssi_1996(Person) :-
    lawfully_residing(Person, 'U.S.', date(1996, 8, 22)),
    receiving_ssi_on(Person, date(1996, 8, 22)).

% Military connection
military_connection(Person) :-
    (veteran(Person, 'U.S._Armed_Forces');
     active_duty(Person, 'U.S._Armed_Forces');
     spouse_of_veteran_or_active_duty(Person);
     dependent_child_of_veteran_or_active_duty(Person)).

% Time-limited eligibility (7-year rule)
time_limited_eligibility(Person) :-
    member(Status, ['Refugee', 'Asylee', 'Deportation_Withheld', 'Removal_Withheld', 'Cuban_Haitian_Entrant', 'Amerasian_Immigrant']),
    status_granted_within_7_years(Person, Status).

% Specific alien category eligibility rules
refugee_eligible(Person) :-
    status(Person, 'Refugee'),
    (blind_or_disabled_1996(Person);
     lawfully_residing_and_receiving_ssi_1996(Person);
     military_connection(Person);
     status_granted_within_7_years(Person, 'Refugee')).

asylee_eligible(Person) :-
    status(Person, 'Asylee'),
    (blind_or_disabled_1996(Person);
     lawfully_residing_and_receiving_ssi_1996(Person);
     military_connection(Person);
     status_granted_within_7_years(Person, 'Asylee')).

deportation_removal_withheld_eligible(Person) :-
    (status(Person, 'Deportation_Withheld'); status(Person, 'Removal_Withheld')),
    (blind_or_disabled_1996(Person);
     lawfully_residing_and_receiving_ssi_1996(Person);
     military_connection(Person);
     status_granted_within_7_years(Person, 'Deportation_Withheld');
     status_granted_within_7_years(Person, 'Removal_Withheld')).

conditional_entrant_eligible(Person) :-
    status(Person, 'Conditional_Entrant'),
    (blind_or_disabled_1996(Person);
     lawfully_residing_and_receiving_ssi_1996(Person);
     military_connection(Person)).

cuban_haitian_entrant_eligible(Person) :-
    status(Person, 'Cuban_Haitian_Entrant'),
    (blind_or_disabled_1996(Person);
     lawfully_residing_and_receiving_ssi_1996(Person);
     military_connection(Person);
     status_granted_within_7_years(Person, 'Cuban_Haitian_Entrant')).

parolee_eligible(Person) :-
    status(Person, 'Parolee'),
    parolee_for_at_least_1_year(Person),
    (blind_or_disabled_1996(Person);
     lawfully_residing_and_receiving_ssi_1996(Person);
     military_connection(Person);
     status_granted_within_7_years(Person, 'Cuban_Haitian_Entrant')).

battered_alien_eligible(Person) :-
    status(Person, 'Battered_Alien'),
    (blind_or_disabled_1996(Person);
     lawfully_residing_and_receiving_ssi_1996(Person);
     military_connection(Person)).

% Compact of Free Association States citizens are ineligible
compact_of_free_association_states_citizen_eligible(Person) :-
    status(Person, 'Compact_Of_Free_Association_States_Citizen'),
    fail.

% Loss of eligibility
loses_eligibility(Person, Date) :-
    qualified_alien_status(Person),
    (loses_7_year_eligibility(Person, Date);
     loses_military_connection(Person, Date);
     loses_40_quarters(Person, Date)).

% Helper predicates (to be defined elsewhere)
us_citizen(_).
us_national(_).
ethnicity(_, _).
born_in_canada(_).
indian_blood_percentage(_, _).
member(_, _).
receiving_ssi_before(_, _).
not_qualified_alien(_).
receiving_ssi_on(_, _).
prucol_status_continues(_).
qualified_alien_status(_).
qualified_alien_status(_, _).
lawfully_residing(_, _, _).
blind(_).
disabled(_).
has_40_qualifying_quarters(_).
veteran(_, _).
active_duty(_, _).
spouse_of_veteran_or_active_duty(_).
dependent_child_of_veteran_or_active_duty(_).
status_granted_within_7_years(_, _).
nationality(_, _).
adjusted_status_under(_, _).
loses_7_year_eligibility(_, _).
loses_military_connection(_, _).
loses_40_quarters(_, _).
parolee_for_at_least_1_year(_).
condition(_, _).
status(_, _).