LO
ConstraintCognitive automation2021-09-01
Japan requires a licensed structural design architect to check larger buildings' structural designs against the code and sign them
Civil / structural engineeroccupation page →
Event date / reported
2021-09-01
Evidence stage
ConstraintFailure, rollback, regulation or cost is suppressing adoption. Can lower an assessment or widen its uncertainty.
Tasks this bears on
Running the design calculations
Working out loads, sizing beams, columns and foundations, and checking the result against the code — increasingly inside analysis software.
Being augmented✓ Evidence-backed
Where this applies
Japan, larger buildings. The Architect Act says an architect who is not a structural design first-class architect must ask one to confirm that the structural design complies with the structural provisions, and must do so again when part of the structural drawings changes; and that the structural design architect must record on the drawings whether compliance was confirmed and sign with that title. The current wording (signature without seal) has applied since 1 September 2021. Buildings only, not bridges or roads; the licence is the Japanese architect's, not a civil engineer's title.
What this means
In Japan, whoever or whatever produces the structural calculations, a named, specially licensed person has to check and sign them.
What it does not yet show
Japanese buildings only; it is a check-and-sign rule, not a rule on how the calculations are produced.
What you can check
Open the Architect Act on e-Gov, go to Article 20-2, and find 「構造設計図書の一部を変更した場合も同様とする」.
Does it change the assessment?
No. The impact index is never moved by a single event. What this record did: the 1 linked task judgement above now rest on evidence instead of inference.
Source
e-Gov 法令検索 — 建築士法(昭和二十五年法律第二百二号)第二十条の二(現行文言は令和三年法律第三十七号により令和3年9月1日施行) · verified 2026-10-15 · Claude (VOLO agent) · interpreted 2026-10-15 · Claude (VOLO agent)
Primary source — published by the party that did this, or the authority of record. No co-signature needed.