diff --git a/AGENTS.md b/AGENTS.md
index f5f725b..a461c81 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -63,8 +63,9 @@ session with **no other memory of this project**. So:
     (multi-letter, client-filtered like `experience`/`rate`): `format`
     (one-on-one/group/camp/video-analysis/contest-prep/park-lesson/adaptive/
     girls-session/after-school), `level`, `age`, `cert` (self-attested
-    first-aid/cpr/safeguarding/background-check/insured/federation — **never shown
-    as verified**), `language` (free-form), `availability`, `booking` (URL),
+    first-aid/cpr/safeguarding/background-check/insured/federation/qualification/
+    judge + free-form `cert_note` — **never shown as verified**), `language`
+    (free-form), `availability`, `booking` (URL),
     `photo` (repeatable gallery, ≤12) and `video` (YouTube/Instagram reel).
     Option sets + i18n keys live in **`src/lib/coachOptions.ts`**; the form renders
     a reusable `OptionChips` row; the gallery reuses **`PhotoDropzone`** +
diff --git a/NIP.md b/NIP.md
index d03de1d..403bdd7 100644
--- a/NIP.md
+++ b/NIP.md
@@ -2063,7 +2063,8 @@ client-side.
 | `format` | `one-on-one`, `group`, `camp`, `video-analysis`, `contest-prep`, `park-lesson`, `adaptive`, `girls-session`, `after-school` | How sessions are delivered |
 | `level` | `beginner`, `intermediate`, `advanced`, `competition` | Levels taught |
 | `age` | `kids`, `teens`, `adults`, `seniors` | Age groups coached |
-| `cert` | `first-aid`, `cpr`, `safeguarding`, `background-check`, `insured`, `federation` | Self-attested credentials / safety |
+| `cert` | `first-aid`, `cpr`, `safeguarding`, `background-check`, `insured`, `federation`, `qualification`, `judge` | Self-attested credentials / safety |
+| `cert_note` | free-form | Optional — names an exact certification / issuer |
 | `language` | free-form (e.g. `English`, `Español`) | Languages spoken |
 | `availability` | `weekdays`, `weekends`, `evenings`, `after-school`, `school-holidays`, `seasonal` | When available |
 | `booking` | URL | Optional booking / scheduling link |
diff --git a/src/i18n/en.ts b/src/i18n/en.ts
index 3d1a5af..fe33a8c 100644
--- a/src/i18n/en.ts
+++ b/src/i18n/en.ts
@@ -2209,7 +2209,11 @@ labUi: {
       certSafeguarding: 'Safeguarding',
       certBackgroundCheck: 'Background check',
       certInsured: 'Insured',
-      certFederation: 'Federation coach',
+      certFederation: 'National federation coach',
+      certQualification: 'Coaching qualification',
+      certJudge: 'Competition judge',
+      certNoteLabel: 'Other credentials (optional)',
+      certNotePlaceholder: 'e.g. Skateboard GB Level 2, 8 years coaching…',
       availWeekdays: 'Weekdays',
       availWeekends: 'Weekends',
       availEvenings: 'Evenings',
diff --git a/src/i18n/es.ts b/src/i18n/es.ts
index 4e1f046..52a1b08 100644
--- a/src/i18n/es.ts
+++ b/src/i18n/es.ts
@@ -2209,7 +2209,11 @@ labUi: {
       certSafeguarding: 'Protección infantil',
       certBackgroundCheck: 'Antecedentes penales',
       certInsured: 'Asegurado',
-      certFederation: 'Entrenador federativo',
+      certFederation: 'Entrenador federativo nacional',
+      certQualification: 'Titulación de entrenador',
+      certJudge: 'Juez de competición',
+      certNoteLabel: 'Otras credenciales (opcional)',
+      certNotePlaceholder: 'p. ej. Nivel 2 de Skateboard GB, 8 años entrenando…',
       availWeekdays: 'Entre semana',
       availWeekends: 'Fines de semana',
       availEvenings: 'Tardes/noches',
diff --git a/src/lib/coachOptions.ts b/src/lib/coachOptions.ts
index 912f308..432d99a 100644
--- a/src/lib/coachOptions.ts
+++ b/src/lib/coachOptions.ts
@@ -40,6 +40,8 @@ export const COACH_CREDENTIALS: CoachOption[] = [
   { value: 'background-check', key: 'labUi.coachForm.certBackgroundCheck' },
   { value: 'insured', key: 'labUi.coachForm.certInsured' },
   { value: 'federation', key: 'labUi.coachForm.certFederation' },
+  { value: 'qualification', key: 'labUi.coachForm.certQualification' },
+  { value: 'judge', key: 'labUi.coachForm.certJudge' },
 ];
 
 export const COACH_AVAILABILITY: CoachOption[] = [
diff --git a/src/lib/types.ts b/src/lib/types.ts
index c1eb62a..8090e45 100644
--- a/src/lib/types.ts
+++ b/src/lib/types.ts
@@ -2343,6 +2343,8 @@ export interface SkateCoach {
   ageGroups: string[];
   /** Self-attested credentials (first-aid, safeguarding, …). */
   credentials: string[];
+  /** Optional free-form credential note (names an exact cert / issuer). */
+  certNote?: string;
   /** Languages spoken. */
   languages: string[];
   /** Availability windows (weekends, evenings, …). */
@@ -2692,6 +2694,7 @@ export function parseSkateCoach(event: NostrEvent): SkateCoach | null {
   const levels = values('level');
   const ageGroups = values('age');
   const credentials = values('cert');
+  const certNote = event.tags.find(([name]) => name === 'cert_note')?.[1];
   // Languages are proper nouns — preserve case (no lowercasing).
   const languages = event.tags
     .filter(([n, v]) => n === 'language' && !!v?.trim())
@@ -2753,6 +2756,7 @@ export function parseSkateCoach(event: NostrEvent): SkateCoach | null {
     levels,
     ageGroups,
     credentials,
+    certNote,
     languages,
     availability,
     booking,
diff --git a/src/pages/BecomeCoachPage.tsx b/src/pages/BecomeCoachPage.tsx
index 9260c00..4f352e5 100644
--- a/src/pages/BecomeCoachPage.tsx
+++ b/src/pages/BecomeCoachPage.tsx
@@ -140,6 +140,7 @@ export default function BecomeCoachPage() {
   const [levels, setLevels] = useState<string[]>([]);
   const [ageGroups, setAgeGroups] = useState<string[]>([]);
   const [credentials, setCredentials] = useState<string[]>([]);
+  const [certNote, setCertNote] = useState('');
   const [languages, setLanguages] = useState<string[]>([]);
   const [languageInput, setLanguageInput] = useState('');
   const [availability, setAvailability] = useState<string[]>([]);
@@ -187,6 +188,7 @@ export default function BecomeCoachPage() {
     setLevels(tags('level'));
     setAgeGroups(tags('age'));
     setCredentials(tags('cert'));
+    setCertNote(tag('cert_note') ?? '');
     setLanguages(tags('language'));
     setAvailability(tags('availability'));
     setBooking(tag('booking') ?? '');
@@ -360,6 +362,7 @@ export default function BecomeCoachPage() {
       for (const v of levels) tags.push(['level', v]);
       for (const v of ageGroups) tags.push(['age', v]);
       for (const v of credentials) tags.push(['cert', v]);
+      if (certNote.trim()) tags.push(['cert_note', certNote.trim()]);
       for (const v of languages) tags.push(['language', v]);
       for (const v of availability) tags.push(['availability', v]);
       if (booking.trim()) tags.push(['booking', normalizeUrlInput(booking)]);
@@ -619,6 +622,11 @@ export default function BecomeCoachPage() {
                 idPrefix="cert"
               />
 
+              <div className="space-y-1.5">
+                <Label htmlFor="cert-note" className="text-xs font-normal text-gray-400">{t('labUi.coachForm.certNoteLabel')}</Label>
+                <Input id="cert-note" placeholder={t('labUi.coachForm.certNotePlaceholder')} value={certNote} onChange={(e) => setCertNote(e.target.value)} className="bg-gray-800 border-gray-700" />
+              </div>
+
               <div className="space-y-2">
                 <Label htmlFor="language">{t('labUi.coachForm.languagesLabel')}</Label>
                 <p className="text-xs text-gray-500">{t('labUi.coachForm.languagesHint')}</p>
diff --git a/src/pages/CoachDetailPage.tsx b/src/pages/CoachDetailPage.tsx
index 4c7403a..49b156c 100644
--- a/src/pages/CoachDetailPage.tsx
+++ b/src/pages/CoachDetailPage.tsx
@@ -425,21 +425,26 @@ export default function CoachDetailPage() {
                 )}
 
                 {/* Coach — credentials, formats, levels, ages, languages, availability */}
-                {isCoach && (parr('credentials').length > 0 || parr('formats').length > 0 || parr('levels').length > 0 || parr('ageGroups').length > 0 || parr('languages').length > 0 || parr('availability').length > 0 || pget('booking')) && (
+                {isCoach && (parr('credentials').length > 0 || pget('certNote') || parr('formats').length > 0 || parr('levels').length > 0 || parr('ageGroups').length > 0 || parr('languages').length > 0 || parr('availability').length > 0 || pget('booking')) && (
                   <div className="mb-6 space-y-5">
-                    {parr('credentials').length > 0 && (
+                    {(parr('credentials').length > 0 || pget('certNote')) && (
                       <div>
                         <h3 className="text-lg font-bold text-[#ccff00] uppercase mb-2 flex items-center gap-2">
                           <ShieldCheck className={`h-4 w-4 ${accent.text}`} /> {t('labUi.detail.credentialsTitle')}
                         </h3>
-                        <div className="flex flex-wrap gap-2">
-                          {parr('credentials').map((c) => (
-                            <span key={c} className={`inline-flex items-center gap-1.5 text-xs font-bold px-3 py-1.5 rounded-full border ${accent.border} text-gray-200`}>
-                              <ShieldCheck className="h-3.5 w-3.5" />
-                              {optLabel(COACH_CREDENTIALS, c)}
-                            </span>
-                          ))}
-                        </div>
+                        {parr('credentials').length > 0 && (
+                          <div className="flex flex-wrap gap-2">
+                            {parr('credentials').map((c) => (
+                              <span key={c} className={`inline-flex items-center gap-1.5 text-xs font-bold px-3 py-1.5 rounded-full border ${accent.border} text-gray-200`}>
+                                <ShieldCheck className="h-3.5 w-3.5" />
+                                {optLabel(COACH_CREDENTIALS, c)}
+                              </span>
+                            ))}
+                          </div>
+                        )}
+                        {pget('certNote') && (
+                          <p className="mt-2 text-sm text-gray-300">{pget('certNote')}</p>
+                        )}
                         <p className="text-xs text-gray-500 mt-1.5">{t('labUi.detail.selfAttested')}</p>
                       </div>
                     )}