diff --git a/db/migrations/0036_approval_workflow.sql b/db/migrations/0036_approval_workflow.sql
deleted file mode 100644
index 71dc74b5..00000000
--- a/db/migrations/0036_approval_workflow.sql
+++ /dev/null
@@ -1,57 +0,0 @@
--- Approval Workflow Schema (VS-03)
--- Maker-Checker approval gates for model activation
--- INSERT-only, PIT-tracked with correlation_id
-
-CREATE SCHEMA IF NOT EXISTS model_operations;
-
--- Approval proposals (DRAFT → PROPOSED → APPROVED → ACTIVE)
-CREATE TABLE IF NOT EXISTS model_operations.approval_proposals (
-    id UUID PRIMARY KEY,
-    model_id UUID NOT NULL REFERENCES model_operations.models(id),
-    status VARCHAR(50) NOT NULL,
-    created_by VARCHAR(255) NOT NULL,
-    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
-    justification TEXT NOT NULL,
-    effective_at DATE NOT NULL,
-    proposed_at TIMESTAMPTZ,
-    approved_by VARCHAR(255),
-    approved_at TIMESTAMPTZ,
-    approval_notes TEXT,
-    activated_by VARCHAR(255),
-    activated_at TIMESTAMPTZ,
-    published_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
-    revision INT NOT NULL DEFAULT 1,
-    correlation_id UUID NOT NULL
-);
-
-CREATE INDEX IF NOT EXISTS idx_approval_proposals_model_id ON model_operations.approval_proposals(model_id);
-CREATE INDEX IF NOT EXISTS idx_approval_proposals_status ON model_operations.approval_proposals(status);
-CREATE INDEX IF NOT EXISTS idx_approval_proposals_created_by ON model_operations.approval_proposals(created_by);
-
--- Approval evidence (PBO/DSR/OOS artifacts)
-CREATE TABLE IF NOT EXISTS model_operations.approval_evidence (
-    id UUID PRIMARY KEY,
-    approval_proposal_id UUID NOT NULL REFERENCES model_operations.approval_proposals(id),
-    evidence_type VARCHAR(50) NOT NULL,
-    evidence_url TEXT NOT NULL,
-    reviewer_comment TEXT,
-    published_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
-    correlation_id UUID NOT NULL
-);
-
-CREATE INDEX IF NOT EXISTS idx_approval_evidence_proposal_id ON model_operations.approval_evidence(approval_proposal_id);
-
--- Approval events (audit trail)
-CREATE TABLE IF NOT EXISTS model_operations.approval_events (
-    id UUID PRIMARY KEY,
-    approval_proposal_id UUID NOT NULL REFERENCES model_operations.approval_proposals(id),
-    event_type VARCHAR(50) NOT NULL,
-    actor_email VARCHAR(255) NOT NULL,
-    event_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
-    details JSONB,
-    published_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
-    correlation_id UUID NOT NULL
-);
-
-CREATE INDEX IF NOT EXISTS idx_approval_events_proposal_id ON model_operations.approval_events(approval_proposal_id);
-CREATE INDEX IF NOT EXISTS idx_approval_events_type ON model_operations.approval_events(event_type);