diff --git a/App/app/(portal)/history/history-filters.tsx b/App/app/(portal)/history/history-filters.tsx
index d9fe99f..6f6f25c 100644
--- a/App/app/(portal)/history/history-filters.tsx
+++ b/App/app/(portal)/history/history-filters.tsx
@@ -36,8 +36,6 @@ export function HistoryFilters({ vessels, accounts, perPageOptions, defaultPerPa
 
   const [dateFrom, setDateFrom] = useState(sp.get("dateFrom") ?? "");
   const [dateTo, setDateTo] = useState(sp.get("dateTo") ?? "");
-  const [approvedFrom, setApprovedFrom] = useState(sp.get("approvedFrom") ?? "");
-  const [approvedTo, setApprovedTo] = useState(sp.get("approvedTo") ?? "");
   const [vesselId, setVesselId] = useState(sp.get("vesselId") ?? "");
   const [accountId, setAccountId] = useState(sp.get("accountId") ?? "");
   const [statuses, setStatuses] = useState<string[]>(sp.getAll("status"));
@@ -65,8 +63,6 @@ export function HistoryFilters({ vessels, accounts, perPageOptions, defaultPerPa
     const params = new URLSearchParams();
     if (dateFrom) params.set("dateFrom", dateFrom);
     if (dateTo) params.set("dateTo", dateTo);
-    if (approvedFrom) params.set("approvedFrom", approvedFrom);
-    if (approvedTo) params.set("approvedTo", approvedTo);
     if (vesselId) params.set("vesselId", vesselId);
     if (accountId) params.set("accountId", accountId);
     for (const s of statuses) params.append("status", s);
@@ -83,14 +79,14 @@ export function HistoryFilters({ vessels, accounts, perPageOptions, defaultPerPa
   }
 
   function clear() {
-    setDateFrom(""); setDateTo(""); setApprovedFrom(""); setApprovedTo(""); setVesselId(""); setAccountId(""); setStatuses([]);
+    setDateFrom(""); setDateTo(""); setVesselId(""); setAccountId(""); setStatuses([]);
     const params = new URLSearchParams();
     if (perPage !== defaultPerPage) params.set("perPage", String(perPage));
     const qs = params.toString();
     router.push(qs ? `/history?${qs}` : "/history");
   }
 
-  const hasFilters = dateFrom || dateTo || approvedFrom || approvedTo || vesselId || accountId || statuses.length > 0;
+  const hasFilters = dateFrom || dateTo || vesselId || accountId || statuses.length > 0;
 
   const statusLabel =
     statuses.length === 0
@@ -112,16 +108,6 @@ export function HistoryFilters({ vessels, accounts, perPageOptions, defaultPerPa
           <input type="date" value={dateTo} onChange={(e) => setDateTo(e.target.value)}
             className="w-full rounded-lg border border-neutral-300 px-3 py-2 text-sm focus:border-primary-500 focus:outline-none focus:ring-2 focus:ring-primary-500/20" />
         </div>
-        <div>
-          <label className="block text-xs font-medium text-neutral-600 mb-1">Approved From</label>
-          <input type="date" value={approvedFrom} onChange={(e) => setApprovedFrom(e.target.value)}
-            className="w-full rounded-lg border border-neutral-300 px-3 py-2 text-sm focus:border-primary-500 focus:outline-none focus:ring-2 focus:ring-primary-500/20" />
-        </div>
-        <div>
-          <label className="block text-xs font-medium text-neutral-600 mb-1">Approved To</label>
-          <input type="date" value={approvedTo} onChange={(e) => setApprovedTo(e.target.value)}
-            className="w-full rounded-lg border border-neutral-300 px-3 py-2 text-sm focus:border-primary-500 focus:outline-none focus:ring-2 focus:ring-primary-500/20" />
-        </div>
         <div>
           <label className="block text-xs font-medium text-neutral-600 mb-1">Cost Centre</label>
           <select value={vesselId} onChange={(e) => setVesselId(e.target.value)}
diff --git a/App/tests/unit/history-filters.test.tsx b/App/tests/unit/history-filters.test.tsx
new file mode 100644
index 0000000..141e003
--- /dev/null
+++ b/App/tests/unit/history-filters.test.tsx
@@ -0,0 +1,36 @@
+import { describe, it, expect, vi } from "vitest";
+import { render, screen } from "@testing-library/react";
+
+// HistoryFilters reads the URL via next/navigation; mock both hooks it uses.
+vi.mock("next/navigation", () => ({
+  useRouter: () => ({ push: vi.fn(), refresh: vi.fn() }),
+  useSearchParams: () => new URLSearchParams(""),
+}));
+
+import { HistoryFilters } from "@/app/(portal)/history/history-filters";
+
+const props = {
+  vessels: [{ id: "v1", name: "Vessel One" }],
+  accounts: [],
+  perPageOptions: [25, 50, 100],
+  defaultPerPage: 25,
+};
+
+describe("HistoryFilters", () => {
+  // Regression guard for issue #136: the "Approved From" / "Approved To" date
+  // filters were removed from PO History. They must not reappear.
+  it("does not render the Approved From / Approved To filters", () => {
+    render(<HistoryFilters {...props} />);
+    expect(screen.queryByText("Approved From")).toBeNull();
+    expect(screen.queryByText("Approved To")).toBeNull();
+  });
+
+  it("still renders the remaining filters (created-date range, cost centre, accounting code, status)", () => {
+    render(<HistoryFilters {...props} />);
+    expect(screen.getByText("From")).toBeInTheDocument();
+    expect(screen.getByText("To")).toBeInTheDocument();
+    expect(screen.getByText("Cost Centre")).toBeInTheDocument();
+    expect(screen.getByText("Accounting Code")).toBeInTheDocument();
+    expect(screen.getByText("Status")).toBeInTheDocument();
+  });
+});