diff --git a/src/Validator/Validator.php b/src/Validator/Validator.php
index 13b84e2..2a51171 100644
--- a/src/Validator/Validator.php
+++ b/src/Validator/Validator.php
@@ -79,6 +79,20 @@ public function validate($value): Resolution
             ]);
         }
 
+        foreach ($this->config->getAIConstraints() as $code => $constraint) {
+            if ($barcode->hasAI((string) $code)
+                && !$constraint($ai = $barcode->ai((string) $code))
+            ) {
+                return Resolution::createInvalid([
+                    ErrorCodes::INVALID_VALUE => sprintf(
+                        'AI is invalid: code=%s, value=%s',
+                        $code,
+                        $ai
+                    ),
+                ]);
+            }
+        }
+
         return Resolution::createValid();
     }
 
diff --git a/src/Validator/ValidatorConfig.php b/src/Validator/ValidatorConfig.php
index 2a17d10..04a90df 100644
--- a/src/Validator/ValidatorConfig.php
+++ b/src/Validator/ValidatorConfig.php
@@ -8,6 +8,7 @@ final class ValidatorConfig
 {
     private $requiredAIs = [];
     private $forbiddenAIs = [];
+    private $aiConstraints = [];
     private $allowEmpty = false;
 
     public function getRequiredAIs(): array
@@ -42,4 +43,15 @@ public function setAllowEmpty(bool $allowEmpty): self
         $this->allowEmpty = $allowEmpty;
         return $this;
     }
-}
\ No newline at end of file
+
+    public function setAIConstraints(array $aiConstraints): self
+    {
+        $this->aiConstraints = $aiConstraints;
+        return $this;
+    }
+
+    public function getAIConstraints(): array
+    {
+        return $this->aiConstraints;
+    }
+}
diff --git a/tests/Validator/ValidatorConfigTest.php b/tests/Validator/ValidatorConfigTest.php
index 97d9b65..dab8540 100644
--- a/tests/Validator/ValidatorConfigTest.php
+++ b/tests/Validator/ValidatorConfigTest.php
@@ -18,6 +18,7 @@ public function testConfigDefaults(): void
 
         self::assertEmpty($config->getRequiredAIs());
         self::assertEmpty($config->getForbiddenAIs());
+        self::assertEmpty($config->getAIConstraints());
         self::assertFalse($config->isAllowEmpty());
     }
 
@@ -26,10 +27,12 @@ public function testGettersSetters(): void
         $config = (new ValidatorConfig())
             ->setAllowEmpty(true)
             ->setRequiredAIs(['10'])
-            ->setForbiddenAIs(['01']);
+            ->setForbiddenAIs(['01'])
+            ->setAIConstraints(['01' => fn(string $ai) => true]);
 
         self::assertTrue($config->isAllowEmpty());
         self::assertEquals(['10'], $config->getRequiredAIs());
         self::assertEquals(['01'], $config->getForbiddenAIs());
+        self::assertEquals(['01' => fn(string $ai) => true], $config->getAIConstraints());
     }
 }
diff --git a/tests/Validator/ValidatorTest.php b/tests/Validator/ValidatorTest.php
index ed71927..ca88eb6 100644
--- a/tests/Validator/ValidatorTest.php
+++ b/tests/Validator/ValidatorTest.php
@@ -62,6 +62,10 @@ public function dataValidate(): array
             ->setRequiredAIs(['10']);
         $forbiddenAI = (new ValidatorConfig())
             ->setForbiddenAIs(['01']);
+        $aiConstraintReturnTrue = (new ValidatorConfig())
+            ->setAIConstraints(['01' => fn (string $ai) => true]);
+        $aiConstraintReturnFalse = (new ValidatorConfig())
+            ->setAIConstraints(['01' => fn (string $ai) => false]);
 
         return [
             'valid' => [
@@ -114,6 +118,18 @@ public function dataValidate(): array
                     ErrorCodes::FORBIDDEN_AIS => '',
                 ]),
             ],
+            'ai constraint return true' => [
+                $aiConstraintReturnTrue,
+                ']d201034531200000111719112511ABCD1234',
+                Resolution::createValid(),
+            ],
+            'ai constraint return false' => [
+                $aiConstraintReturnFalse,
+                ']d201034531200000111719112511ABCD1234',
+                Resolution::createInvalid([
+                    ErrorCodes::INVALID_VALUE => 'AI is invalid: code=01, value=03453120000011',
+                ]),
+            ],
         ];
     }