diff --git a/src/Domain/Models/ValueObjects/Brand/ArcadiaId.php b/src/Domain/Models/ValueObjects/Brand/ArcadiaId.php
index f7bddbf..875593b 100644
--- a/src/Domain/Models/ValueObjects/Brand/ArcadiaId.php
+++ b/src/Domain/Models/ValueObjects/Brand/ArcadiaId.php
@@ -8,7 +8,7 @@ use Shared\DDD\Model\EntityId;
 
 final readonly class ArcadiaId extends EntityId
 {
-    private const string PATTERN = '/^[1-9]\d{0,}$/';
+    private const string PATTERN = '/^[1-9]\d*$/';
 
     public function __construct(
         string $value
diff --git a/src/Infra/Adapters/Directories/ArcadiaMarqueBrandDirectory.php b/src/Infra/Adapters/Directories/ArcadiaMarqueBrandDirectory.php
index 7e6212a..4bbfb27 100644
--- a/src/Infra/Adapters/Directories/ArcadiaMarqueBrandDirectory.php
+++ b/src/Infra/Adapters/Directories/ArcadiaMarqueBrandDirectory.php
@@ -9,6 +9,7 @@ use Domain\Models\ValueObjects\Brand\ArcadiaBrand;
 use Domain\Models\ValueObjects\Brand\ArcadiaId;
 use Domain\Ports\Directories\ArcadiaBrandDirectory as ArcadiaBrandDirectoryPort;
 use Illuminate\Database\Connection;
+use Illuminate\Database\Query\Builder;
 use Infra\Adapters\Mappers\ArcadiaBrandMapper;
 
 final class ArcadiaMarqueBrandDirectory implements ArcadiaBrandDirectoryPort
@@ -26,6 +27,14 @@ final class ArcadiaMarqueBrandDirectory implements ArcadiaBrandDirectoryPort
     {
         $rows = $this->connection
             ->table(MarqueTable::table($this->connection))
+            ->where('COD_MARQ', '>', 0)
+            ->where('LIB_MARQ', 'NOT LIKE', 'Z -%')
+            ->where(static function (Builder $q): void {
+                $q->whereNull('A_EPURER')->orWhere('A_EPURER', '!=', 1);
+            })
+            ->where(static function (Builder $q): void {
+                $q->whereNull('TYPE_MARQUE')->orWhere('TYPE_MARQUE', '!=', 99);
+            })
             ->get();
 
         $items = [];
@@ -49,6 +58,14 @@ final class ArcadiaMarqueBrandDirectory implements ArcadiaBrandDirectoryPort
         $row = $this->connection
             ->table(MarqueTable::table($this->connection))
             ->where('COD_MARQ', $id->value)
+            ->where('COD_MARQ', '>', 0)
+            ->where('LIB_MARQ', 'NOT LIKE', 'Z -%')
+            ->where(static function (Builder $q): void {
+                $q->whereNull('A_EPURER')->orWhere('A_EPURER', '!=', 1);
+            })
+            ->where(static function (Builder $q): void {
+                $q->whereNull('TYPE_MARQUE')->orWhere('TYPE_MARQUE', '!=', 99);
+            })
             ->first();
 
         if ($row === null) {
diff --git a/src/Infra/Adapters/Directories/InMemoryArcadiaBrandDirectory.php b/src/Infra/Adapters/Directories/InMemoryArcadiaBrandDirectory.php
index 6cf53b6..27c1912 100644
--- a/src/Infra/Adapters/Directories/InMemoryArcadiaBrandDirectory.php
+++ b/src/Infra/Adapters/Directories/InMemoryArcadiaBrandDirectory.php
@@ -30,12 +30,20 @@ final class InMemoryArcadiaBrandDirectory implements ArcadiaBrandDirectory
     #[\Override]
     public function findAll(): array
     {
-        return array_values($this->brands);
+        return array_values(array_filter(
+            $this->brands,
+            static fn (ArcadiaBrand $b): bool => ! str_starts_with($b->name->value, 'Z -')
+        ));
     }
 
     #[\Override]
     public function find(ArcadiaId $id): ?ArcadiaBrand
     {
-        return $this->brands[$id->value] ?? null;
+        $brand = $this->brands[$id->value] ?? null;
+        if ($brand !== null && str_starts_with($brand->name->value, 'Z -')) {
+            return null;
+        }
+
+        return $brand;
     }
 }
diff --git a/tests/Unit/Domain/Models/ValueObjects/Brand/ArcadiaIdTest.php b/tests/Unit/Domain/Models/ValueObjects/Brand/ArcadiaIdTest.php
index 13532fa..c36bbf3 100644
--- a/tests/Unit/Domain/Models/ValueObjects/Brand/ArcadiaIdTest.php
+++ b/tests/Unit/Domain/Models/ValueObjects/Brand/ArcadiaIdTest.php
@@ -15,7 +15,7 @@ describe('ArcadiaId Value Object Instantiation', function (): void {
 
         // THEN
         expect($arcadiaId->value)->toBe($data);
-    })->with(['1', '999', '123']);
+    })->with(['1', '999', '123', '1000', '1199']);
 });
 
 describe('ArcadiaId Value Object Domain Rules', function (): void {
@@ -23,5 +23,5 @@ describe('ArcadiaId Value Object Domain Rules', function (): void {
         // WHEN & THEN
         expect(fn () => new ArcadiaId($invalid))
             ->toThrow(\DomainException::class);
-    })->with(['0', '1000', '-1', 'abc', '', '01']);
+    })->with(['0', '-1', 'abc', '', '01', '1.5', '-100']);
 });
diff --git a/tests/Unit/Infra/Adapters/Directories/InMemoryArcadiaBrandDirectoryTest.php b/tests/Unit/Infra/Adapters/Directories/InMemoryArcadiaBrandDirectoryTest.php
index 1a9ce7e..815ec67 100644
--- a/tests/Unit/Infra/Adapters/Directories/InMemoryArcadiaBrandDirectoryTest.php
+++ b/tests/Unit/Infra/Adapters/Directories/InMemoryArcadiaBrandDirectoryTest.php
@@ -49,4 +49,21 @@ describe('InMemoryArcadiaBrandDirectory Unit Tests', function (): void {
         // THEN
         expect($directory->findAll())->toBeEmpty();
     });
+
+    it('filters out comment and obsolete brands starting with Z -', function (): void {
+        // GIVEN
+        $directory = new InMemoryArcadiaBrandDirectory();
+        $valid     = new ArcadiaBrand(new ArcadiaId('1'), new BrandName('Le Gaulois'));
+        $comment   = new ArcadiaBrand(new ArcadiaId('2'), new BrandName('Z - PLUS DE CODE ART - VENTRABEN'));
+        $directory->add($valid, $comment);
+
+        // WHEN
+        $all   = $directory->findAll();
+        $found = $directory->find(new ArcadiaId('2'));
+
+        // THEN
+        expect($all)->toHaveCount(1)
+            ->and($all[0]->id->value)->toBe('1')
+            ->and($found)->toBeNull();
+    });
 });