With German unity in 1990, the Basic Law became the definitive constitution of Germany.
Notes on verification
Confirmed by multiple independent sources including Wikipedia, Georgetown Law Library, Germany's Federal Ministry of the Interior, and German legal press, all describing the same well-documented legal-historical process of German reunification and the retention of the Basic Law as the permanent constitution. [cascade flags: wikipedia_dropped_other_sources_exist | tier=silver indep_score=0.833 clusters=3 claim_tier=notable | kind=empirical eligibility=high]
Sources
- 75 Jahre Grundgesetz. Eine Publikationsgeschichte (seed:culture_and_philosophy)
- https://www.bmi.bund.de/EN/topics/constitution/state-order/our-constitution/our-constitution-node.html (corroboration)
- https://guides.ll.georgetown.edu/germanlegalresearch/constitution (corroboration)
- https://www.lto.de/recht/hintergruende/h/wiedervereinigung-deutsche-einheit-grundgesetz-verfassung (corroboration)