Article 22 automatic loss (post-Tjebbes proportionality)

This route covers the automatic loss of Belgian nationality under Article 22 of the Code de la nationalité belge (CNB), as reshaped by the post-Tjebbes proportionality requirement.

Belgian nationality is an exclusive federal competence (Constitution Art. 8) and is governed by the Code de la nationalité belge (CNB), originally enacted as the Loi du 28 juin 1984 (M.B. 12 juillet 1984) and amended over time, including by the Loi du 4 décembre 2012 and most recently the Loi du 18 juin 2024.

Article 22 sets out the grounds on which Belgian nationality is lost automatically (by operation of law), as distinct from voluntary renunciation (Article 23) and judicial revocation (Article 23/1). What makes this route distinctive is that, where the loss of Belgian nationality also entails the loss of European Union citizenship, it can no longer operate as a purely automatic consequence. Following the Court of Justice of the European Union's ruling in Tjebbes (C-221/17, 12 March 2019), and building on Rottmann (C-135/08), such loss must be subject to an individualized proportionality assessment under Article 20 TFEU, examining the consequences for the person concerned and their family.

The Loi du 18 juin 2024 codifies this Tjebbes proportionality test into Belgian law as a procedural reform, with implementing measures provided by the Arrêté Royal du 28 décembre 2024. The Belgian Constitutional Court (C.C. 158/2024) upheld the constitutional compatibility of the 2024 reform and confirmed the requirement of a Tjebbes-aligned individualized proportionality assessment.

Belgium's nationality framework operates through a federal, trilingual structure, with the French, Dutch and German linguistic communities each exercising jurisdiction in their region. Nationality matters are administered at the local level by the officier de l'état civil (commune), with involvement of the Parquet (Procureur du Roi) and the tribunal de la famille.

Eligibility framework: thresholds calibrated per Code de la nationalité belge (CNB) — Loi du 28 juin 1984 as amended by Loi du 4 décembre 2012 — CNN regime (5-year continuous integration pathway; replaced declaration regime). Language pillar: Dutch OR French OR German per linguistic community (Loi du 18 juillet 1966). Standard floor: 5 years continuous residence (one of three integration pathways under 2012 CNN regime). Region-specific integration: Region-specific integration: Flemish inburgering (VL) / Walloon parcours d'intégration (W) / Brussels primo-arrivants (BXL). EU-loss proportionality where relevant: CJEU Tjebbes C-221/17 + Rottmann C-135/08 — EU proportionality for nationality loss (codified BE 2024).

Standard documentation set for XCT pathway: ID + foreign passport, residence permit (where applicable), region-specific integration certificate (Flemish inburgering / Walloon parcours / Brussels primo-arrivants / DE-Community Dekret), language proficiency certificate (A2/B1 by sub-pathway), tax records (last 3 years), Procureur du Roi clearance. Filing fee EUR 150. See DOFI Vademecum 'Nationalité' 2025 for comprehensive checklists.

Route-specific documentation requirements: statutory anchor under Article 22 CNB (current); cessation/loss tracks: Article 22 §1 automatic-loss (PRE-2008 framework, lifted by Loi 27 décembre 2006 effective 2008-04-28) requires foreign-naturalization-decree documentation; Article 22 §2 voluntary renunciation requires declaration before civil registrar + dual-nationality evidence; Article 23/1 court-ordered revocation requires Procureur initiation + Tjebbes proportionality individualized review (codified by Loi 18 juin 2024). Federal Mediator complaint route available (~150 nationality complaints/year); DOFI Vademecum 'Nationalité' provides comprehensive sub-pathway checklists. Filing fee EUR 150 per declaration (Loi 4 décembre 2012 + Royal Decree fee schedule).

Timeline (cessation/loss): variable. Article 22 automatic loss: requires individualized Tjebbes proportionality review (ministerial decision + Conseil d'Etat appeal). Article 23/1 revocation: judicial decision (1-3 years).

Procedural timeline detail (cessation): Article 22 automatic loss requires individualized Tjebbes proportionality review (ministerial decision typically 6-18 months + Conseil d'État appeal 60-day filing window + 12-24 month judicial review). Article 23 court-ordered revocation: Tribunal de la Famille first instance 12-18 months + Cour d'Appel 12 months + Cour de Cassation 6-12 months.

Procedural timeline + costs: declaration filed before the Officier de l'état civil (commune) + Parquet (Procureur du Roi — 4-month opposition window) + Tribunal de la famille. 4-month opposition window from the Parquet (Procureur du Roi). Decision communicated by registered post; absence of opposition = positive acquisition. Standard administrative fee (droit d'enregistrement) per 2024 Code; final inscription in registres de la nationalité. Anchor: Code de la nationalité belge (CNB) — Loi du 28 juin 1984 as amended by Loi du 4 décembre 2012 — CNN regime (5-year continuous integration pathway; replaced declaration regime).

The operative provision for this route is Article 22 CNB, which sets out the grounds for automatic loss of Belgian nationality. Article 22 sits within a broader cessation framework alongside:

• Article 23 CNB — voluntary renunciation of nationality;
• Article 23/1 CNB — judicial revocation in cases of terrorism or serious offences.

Tjebbes proportionality codification (Loi du 18 juin 2024)

The Loi du 18 juin 2024 reformed the loss-and-revocation regime and codified into Belgian law the EU proportionality requirement established by the Court of Justice of the European Union in Tjebbes (CJEU C-221/17, 12 March 2019), building on the earlier Rottmann (C-135/08) line. As a result, automatic loss of Belgian nationality under Article 22 now requires an individualized proportionality assessment consistent with Article 20 TFEU, since loss of Belgian nationality also entails loss of EU citizenship.

Constitutional reaffirmation

The Cour Constitutionnelle (Constitutional Court), in decision C.C. 158/2024, upheld the 2024 expansion of the revocation regime as constitutional and confirmed the mandatory Tjebbes-aligned individual proportionality assessment. This decision continues a line of nationality jurisprudence from the Constitutional Court, with apex review also exercised by the Conseil d'État and the Cour de Cassation.

Broader Code framework

The wider naturalization and nationality framework of the CNB — including the integration-based acquisition pathway introduced by the Loi du 4 décembre 2012 and the competency-allocation rules of Article 12bis governing the regional integration certificate frameworks (Flemish inburgering, Walloon parcours d'intégration, the Brussels primo-arrivants programme, and the German-speaking Community Dekret) — provides the statutory context within which this loss provision operates.

Appeal mechanism: Conseil d'Etat admin-chamber review (60-day deadline post-decision); naturalization refusal subject to procedural-deficiency review only - substantive parliamentary discretion (Article 13) NOT directly reviewable. Federal Mediator complaint route (~150 nationality complaints/year). Constitutional Court access for statutory challenges.

Sub-jurisdictional appeal architecture: Conseil d'État (Raad van State / Staatsrat) administrative chamber (60-day filing window post-notification); review limited to procedural-deficiency for parliamentary discretion (Art 13 CNB) but full substantive review for ministerial decisions (Art 12bis). Cour Constitutionnelle (Grondwettelijk Hof) for statutory challenges (Loi 6 jan 1989 framework). Cour de Cassation 1ère chambre for civil-law nationality determinations. Tjebbes proportionality individualized-review mandate (CJEU C-221/17 + codified by Loi 18 juin 2024) applies to ALL cessation/loss decisions affecting Union citizenship.

Appeals: refusals/oppositions appealable to the Tribunal de la famille (1ère instance); further appeal to the Cour d'appel and Cour de Cassation per C.C. 73/2014 + 122/2013 + 198/2014 — Cour Constitutionnelle nationality jurisprudence; Conseil d'État + Cour de Cassation apex review. Administrative-grievance pathway via Federal Mediator (Médiateur fédéral) — administrative-grievance anchor; DOFI (Direction Office des Étrangers) Vademecum operational guidance. Substantive merits review under Code d