# Wave W2 review

- Verdict: pass
- Scope: city policy query APIs and BigDecimal calculation engine.
- Tasks: 3, 4.
- Evidence: `mvn -Dtest=SalaryCityPolicyServiceTest,SalaryCityPolicyControllerTest,SalaryCalculationEngineTest test` -> 15 tests, 0 failures, 0 errors.
- Requirements covered: enabled city catalogue, city detail defaults, dataLevel, STUDENT authorization, base clamping, override precedence, personal contributions, serious illness, month index, special deduction, cumulative withholding, tax brackets, result breakdown.
- Review blockers: none.