Iceland

Adoption by Icelandic citizen (under 18, adoption in Iceland)

Adoption by IS-citizen residing abroad (sýslumaður confirmation)

Cascade #43 P3B alias: alias_of_IS-ADP-01_foreign_adoption_recognition.

Cascade #43 P3B alias: minor_adoption_sub_route.

Cascade #43 P3B alias: A184_surrogacy_cohort.

EEA Free Movement sub-citizenship

Nordic citizen Section 14 declaration route (Art 14 B)

Former IS-citizen now Nordic-citizen re-acquisition (Art 14 C)

Nordic Passport Union sub-citizenship (no nationality conferral)

Cascade #43 P3B alias: foundational_jus_soli_narrow.

Cascade #43 P3B alias: foundling_sub_route_of_BTH-01.

Cascade #43 P3B alias: A180_statelessness_at_birth_sub_route.

Cessation by absence — loss at age 22 (Art 12)

Cascade #43 V-correction: §12 22y default loss REMAINS OPERATIVE post-Act 9/2003 (cascade #42 conflated with §7).

Cessation by voluntary renunciation (Art 13)

Jus sanguinis foundational (child of Icelandic parent)

Cascade #43 P3B alias: gender_asymmetry_retroactive_sub_route.

Pre-1982 gender-asymmetry restoration (Section 16 transitional)

Cascade #43 P3B alias: foundling_descent_sub_route.

Foundling presumption (child found in Iceland with unknown origin)

Birth on IS-flagged ship/aircraft (statelessness prevention)

Cascade #43 P3B alias: alias_of_IS-DSC-01.

Foreign-national continuous-resident declaration route (age 13-21)

Cascade #43 P3B alias: declaration_route_sub.

Stateless/IP-protected declaration route (3-year residency)

Cascade #43 P3B alias: A183_NPU_overlay_on_descent.

Cascade #43 SWARM-NOVEL: pre-2018 paternal asymmetry extends pre-1964 framework.

Re-acquisition after loss with 2-year residency

Re-acquisition under original §7 (transitional restoration)

Cascade #43 P3B alias: restoration_sub.

Cascade #43 P3B alias: pre-1982_restoration_sub.

Cascade #43 P3B alias: pre-2003-Act-9-2003-loss_restoration_sub.

Stateless-at-birth declaration route (Art 1 a)

Cascade #43 P3B alias: A184_surrogacy_descent_intersection.

Cascade #43 P3B alias: alias_of_IS-XCT-VESTURISLAND-01_descent_lens.

General naturalization (7-year residence base)

Nordic-citizen accelerated naturalization (4-year residence)

Spousal naturalization (4-year joint life post-L. 40/2012)

Cohabitation (skráð sambúð) naturalization (5-year)

Parent-IS-citizen naturalization (2-year)

Former IS-citizen naturalization (1-year)

Refugee/humanitarian protection naturalization (5-year)

Stateless-person naturalization (5-year)

Paradigm-shifting cascade-FIRST candidate IS-CF-SALVAGE-05.

Abolition of 18-month rule + revocation of international protection for serious crimes + new tolerated-stay permit.