diff --git a/assets/certificates/260325_Rheinland Haftpflichtversicherung.pdf b/assets/certificates/260325_Rheinland Haftpflichtversicherung.pdf
new file mode 100644
index 000000000..a01ff85cf
Binary files /dev/null and b/assets/certificates/260325_Rheinland Haftpflichtversicherung.pdf differ
diff --git a/components/blocks/CertificatesBlock.tsx b/components/blocks/CertificatesBlock.tsx
index 06f4c145a..9463b29f1 100644
--- a/components/blocks/CertificatesBlock.tsx
+++ b/components/blocks/CertificatesBlock.tsx
@@ -25,7 +25,7 @@ interface CertificatesBlockProps {
   hideHeader?: boolean;
 }
 
-const defaultCertificates: Certificate[] = [
+export const defaultCertificates: Certificate[] = [
   {
     title: 'ISO 14001:2015',
     description: 'Umweltmanagementsystem',
@@ -47,6 +47,13 @@ const defaultCertificates: Certificate[] = [
     type: 'iso',
     date: '05.12.2025',
   },
+  {
+    title: 'Betriebshaftpflichtversicherung',
+    description: 'RheinLand Versicherungen (10 Mio. € Deckung)',
+    pdfUrl: '/assets/certificates/betriebshaftpflicht.pdf',
+    type: 'general',
+    date: '25.03.2026',
+  },
   {
     title: 'Freistellungsbescheinigung',
     description: 'Nach § 48 b EStG',
@@ -68,7 +75,6 @@ const defaultCertificates: Certificate[] = [
     type: 'tax',
     date: '13.02.2025',
   },
-
 ];
 
 export function CertificatesBlock({ badge, title, description, certificates = defaultCertificates, hideHeader = false }: CertificatesBlockProps) {
diff --git a/content/en/zertifikate.mdx b/content/en/zertifikate.mdx
index 6e46a3a8f..8d04a3657 100644
--- a/content/en/zertifikate.mdx
+++ b/content/en/zertifikate.mdx
@@ -39,6 +39,13 @@ layout: "fullBleed"
       type: 'iso',
       date: '05.12.2025',
     },
+    {
+      title: 'Commercial Liability Insurance',
+      description: 'RheinLand Insurance (€10M coverage)',
+      pdfUrl: '/assets/certificates/betriebshaftpflicht.pdf',
+      type: 'general',
+      date: '25.03.2026',
+    },
     {
       title: 'Exemption Certificate',
       description: 'According to § 48 b EStG',
diff --git a/public/assets/certificates/betriebshaftpflicht.pdf b/public/assets/certificates/betriebshaftpflicht.pdf
new file mode 100644
index 000000000..a01ff85cf
Binary files /dev/null and b/public/assets/certificates/betriebshaftpflicht.pdf differ
diff --git a/tests/certificates.test.ts b/tests/certificates.test.ts
new file mode 100644
index 000000000..aecb4d5b7
--- /dev/null
+++ b/tests/certificates.test.ts
@@ -0,0 +1,26 @@
+import { describe, it, expect } from 'vitest';
+import fs from 'fs';
+import { defaultCertificates } from '../components/blocks/CertificatesBlock';
+
+describe('Certificates & Insurance Integration (DE + EN)', () => {
+  it('includes the new RheinLand Betriebshaftpflichtversicherung in defaultCertificates (DE)', () => {
+    const haftpflichtCert = defaultCertificates.find(
+      (cert) => cert.title === 'Betriebshaftpflichtversicherung'
+    );
+    expect(haftpflichtCert).toBeDefined();
+    expect(haftpflichtCert?.pdfUrl).toBe('/assets/certificates/betriebshaftpflicht.pdf');
+    expect(haftpflichtCert?.date).toBe('25.03.2026');
+  });
+
+  it('verifies that content/en/zertifikate.mdx includes Commercial Liability Insurance (EN)', () => {
+    const enMdx = fs.readFileSync('/Volumes/Alpha SSD/Coding/e-tib.com/content/en/zertifikate.mdx', 'utf-8');
+    expect(enMdx).toContain("title: 'Commercial Liability Insurance'");
+    expect(enMdx).toContain("pdfUrl: '/assets/certificates/betriebshaftpflicht.pdf'");
+    expect(enMdx).toContain("date: '25.03.2026'");
+  });
+
+  it('verifies that the PDF asset exists in public/assets/certificates/betriebshaftpflicht.pdf', () => {
+    const filePath = '/Volumes/Alpha SSD/Coding/e-tib.com/public/assets/certificates/betriebshaftpflicht.pdf';
+    expect(fs.existsSync(filePath)).toBe(true);
+  });
+});