diff --git a/src/__tests__/fixtures/price-approval.samples.ts b/src/__tests__/fixtures/price-approval.samples.ts
new file mode 100644
index 0000000..7565a96
--- /dev/null
+++ b/src/__tests__/fixtures/price-approval.samples.ts
@@ -0,0 +1,83 @@
+import type { CompositePrice, CompositePriceItem, PriceItem } from '../../shared/types';
+
+// Basic price items for testing
+export const regularPriceItem = {
+  price_id: 'price-1',
+  product_id: 'product-1',
+  _price: {
+    _id: 'price-1',
+    price_display_in_journeys: 'show_price',
+    is_tax_inclusive: true,
+    pricing_model: 'per_unit',
+  } as const,
+  pricing_model: 'per_unit',
+  is_tax_inclusive: true,
+} as const;
+
+export const onRequestPriceItem: PriceItem = {
+  ...regularPriceItem,
+  _price: {
+    ...regularPriceItem._price,
+    price_display_in_journeys: 'show_as_on_request',
+  },
+};
+
+export const approvedOnRequestPriceItem: PriceItem = {
+  ...onRequestPriceItem,
+  on_request_approved: true,
+};
+
+export const startingPricePriceItem: PriceItem = {
+  ...regularPriceItem,
+  _price: {
+    ...regularPriceItem._price,
+    price_display_in_journeys: 'show_as_starting_price',
+  },
+};
+
+export const approvedStartingPricePriceItem: PriceItem = {
+  ...startingPricePriceItem,
+  on_request_approved: true,
+};
+
+// Composite price items for testing
+export const regularCompositePriceItem: CompositePriceItem = {
+  ...regularPriceItem,
+  is_composite_price: true,
+  _price: {
+    ...regularPriceItem._price,
+    is_composite_price: true,
+  },
+  item_components: [regularPriceItem],
+};
+
+export const compositeWithOnRequestComponent: CompositePriceItem = {
+  ...regularCompositePriceItem,
+  item_components: [onRequestPriceItem],
+};
+
+export const approvedCompositeWithOnRequestComponent: CompositePriceItem = {
+  ...compositeWithOnRequestComponent,
+  on_request_approved: true,
+};
+
+export const parentWithOnRequest: CompositePriceItem = {
+  ...regularCompositePriceItem,
+  _price: {
+    ...(regularCompositePriceItem._price as CompositePrice),
+    price_display_in_journeys: 'show_as_on_request',
+  },
+};
+
+export const approvedParentWithOnRequest: CompositePriceItem = {
+  ...parentWithOnRequest,
+  on_request_approved: true,
+};
+
+export const compositeWithOnRequestMode: CompositePriceItem = {
+  ...regularCompositePriceItem,
+  _price: {
+    ...(regularCompositePriceItem._price as CompositePrice),
+    price_display_in_journeys: 'show_as_on_request',
+  },
+};
diff --git a/src/prices/__tests__/approval.test.ts b/src/prices/__tests__/approval.test.ts
new file mode 100644
index 0000000..60b9791
--- /dev/null
+++ b/src/prices/__tests__/approval.test.ts
@@ -0,0 +1,115 @@
+import { describe, it, expect } from 'vitest';
+import { isPriceItemApproved, isOnRequestUnitAmountApproved, isRequiringApproval } from '../approval';
+import * as samples from './../../__tests__/fixtures/price-approval.samples';
+
+describe('Validate approval', () => {
+  describe('isPriceItemApproved', () => {
+    it('should return true for regular price items', () => {
+      expect(isPriceItemApproved(samples.regularPriceItem)).toBe(true);
+    });
+
+    it('should return false for on-request price items without approval', () => {
+      expect(isPriceItemApproved(samples.onRequestPriceItem)).toBe(false);
+    });
+
+    it('should return true for on-request price items with approval', () => {
+      expect(isPriceItemApproved(samples.approvedOnRequestPriceItem)).toBe(true);
+    });
+
+    it('should return false for starting price items without approval', () => {
+      expect(isPriceItemApproved(samples.startingPricePriceItem)).toBe(false);
+    });
+
+    it('should return true for starting price items with approval', () => {
+      expect(isPriceItemApproved(samples.approvedStartingPricePriceItem)).toBe(true);
+    });
+
+    it('should handle composite price items correctly', () => {
+      // Regular composite price item with no on-request components
+      expect(isPriceItemApproved(samples.regularCompositePriceItem)).toBe(true);
+
+      // Composite price item with on-request component, but no approval
+      expect(isPriceItemApproved(samples.compositeWithOnRequestComponent)).toBe(false);
+
+      // Composite price item with on-request component and approval
+      expect(isPriceItemApproved(samples.approvedCompositeWithOnRequestComponent)).toBe(true);
+    });
+
+    it('should handle price items with parent item', () => {
+      // Price item with a regular parent (not requiring approval)
+      expect(isPriceItemApproved(samples.regularPriceItem, samples.regularCompositePriceItem)).toBe(true);
+
+      // On-request price item with a regular parent
+      expect(isPriceItemApproved(samples.onRequestPriceItem, samples.regularCompositePriceItem)).toBe(false);
+
+      // On-request price item with approved parent
+      expect(isPriceItemApproved(samples.onRequestPriceItem, samples.approvedCompositeWithOnRequestComponent)).toBe(
+        true,
+      );
+    });
+  });
+
+  describe('isOnRequestUnitAmountApproved', () => {
+    it('should return true for regular price items', () => {
+      expect(isOnRequestUnitAmountApproved(samples.regularPriceItem, 'show_price')).toBe(true);
+    });
+
+    it('should return false for on-request price items without approval', () => {
+      expect(isOnRequestUnitAmountApproved(samples.onRequestPriceItem, 'show_as_on_request')).toBe(false);
+    });
+
+    it('should return true for on-request price items with approval', () => {
+      expect(isOnRequestUnitAmountApproved(samples.approvedOnRequestPriceItem, 'show_as_on_request')).toBe(true);
+    });
+
+    it('should handle price items with parent item', () => {
+      // Regular price item with regular parent
+      expect(
+        isOnRequestUnitAmountApproved(samples.regularPriceItem, 'show_price', samples.regularCompositePriceItem),
+      ).toBe(true);
+      // Regular price item with parent that has hidden components
+      expect(
+        isOnRequestUnitAmountApproved(samples.regularPriceItem, 'show_price', samples.compositeWithOnRequestComponent),
+      ).toBe(false);
+      // Regular price item with parent that has hidden components and is approved
+      expect(
+        isOnRequestUnitAmountApproved(
+          samples.regularPriceItem,
+          'show_price',
+          samples.approvedCompositeWithOnRequestComponent,
+        ),
+      ).toBe(true);
+    });
+
+    it('should handle parent items with on-request display mode', () => {
+      expect(isOnRequestUnitAmountApproved(samples.regularPriceItem, 'show_price', samples.parentWithOnRequest)).toBe(
+        false,
+      );
+      expect(
+        isOnRequestUnitAmountApproved(samples.regularPriceItem, 'show_price', samples.approvedParentWithOnRequest),
+      ).toBe(true);
+    });
+  });
+
+  describe('isRequiringApproval', () => {
+    it('should return false for regular price items', () => {
+      expect(isRequiringApproval(samples.regularPriceItem)).toBe(false);
+    });
+
+    it('should return true for on-request price items', () => {
+      expect(isRequiringApproval(samples.onRequestPriceItem)).toBe(true);
+      expect(isRequiringApproval(samples.approvedOnRequestPriceItem)).toBe(true); // Still requires approval, just already approved
+    });
+
+    it('should return true for starting price items', () => {
+      expect(isRequiringApproval(samples.startingPricePriceItem)).toBe(true);
+      expect(isRequiringApproval(samples.approvedStartingPricePriceItem)).toBe(true);
+    });
+
+    it('should handle composite price items correctly', () => {
+      expect(isRequiringApproval(samples.regularCompositePriceItem)).toBe(false);
+      expect(isRequiringApproval(samples.compositeWithOnRequestComponent)).toBe(true);
+      expect(isRequiringApproval(samples.compositeWithOnRequestMode)).toBe(true);
+    });
+  });
+});