diff --git a/lib/Cake/Model/ModelValidator.php b/lib/Cake/Model/ModelValidator.php
index 5460f81a8..ba84d3b67 100644
--- a/lib/Cake/Model/ModelValidator.php
+++ b/lib/Cake/Model/ModelValidator.php
@@ -491,4 +491,38 @@ class ModelValidator implements ArrayAccess, IteratorAggregate, Countable {
 		return count($this->_fields);
 	}
 
+/**
+ * Adds a new rule to a field's rule set
+ *
+ * @param string $field The name of the field from wich the rule will be removed
+ * @param array|CakeRule $rule the rule to be added to the field's rule set
+ * @return ModelValidator this instance
+ **/
+	public function add($field, $name, $rule) {
+		$this->_parseRules();
+		if (!isset($this->_fields[$field])) {
+			$rule = array($name => $rule);
+			$this->_fields[$field] = new CakeValidationSet($field, $rule, $this->getMethods());
+		} else {
+			$this->_fields[$field]->setRule($name, $rule);
+		}
+		return $this;
+	}
+
+/**
+ * Removes a rule from the set by its name
+ *
+ * @param string $field The name of the field from wich the rule will be removed
+ * @param string $rule the name of the rule to be removed
+ * @return ModelValidator this instance
+ **/
+	public function remove($field, $rule = null) {
+		$this->_parseRules();
+		if ($rule === null) {
+			unset($this->_fields[$field]);
+		} else {
+			$this->_fields[$field]->removeRule($rule);
+		}
+		return $this;
+	}
 }
diff --git a/lib/Cake/Test/Case/Model/ModelValidationTest.php b/lib/Cake/Test/Case/Model/ModelValidationTest.php
index 5ff65c0c6..9adff1c80 100644
--- a/lib/Cake/Test/Case/Model/ModelValidationTest.php
+++ b/lib/Cake/Test/Case/Model/ModelValidationTest.php
@@ -1833,4 +1833,51 @@ class ModelValidationTest extends BaseModelTest {
 		$this->assertCount(2, $Validator);
 	}
 
+/**
+ * Tests it is possible to add validation rules
+ *
+ * @return void
+ */
+	public function testAddRule() {
+		$TestModel = new Article();
+		$Validator = $TestModel->validator();
+
+		$set = array(
+			'numeric' => array('rule' => 'numeric', 'allowEmpty' => false),
+			'range' => array('rule' => array('between', 1, 5), 'allowEmpty' => false),
+		);
+
+		$Validator->add('other', 'numeric', array('rule' => 'numeric', 'allowEmpty' => false));
+		$Validator->add('other', 'range', array('rule' => array('between', 1, 5), 'allowEmpty' => false));
+		$rules = $Validator['other'];
+		$this->assertEquals('other', $rules->field);
+
+		$validators = $rules->getRules();
+		$this->assertCount(2, $validators);
+		$this->assertEquals('numeric', $validators['numeric']->rule);
+		$this->assertEquals(array('between', 1, 5), $validators['range']->rule);
+	}
+
+/**
+ * Tests it is possible to remove validation rules
+ *
+ * @return void
+ */
+	public function testRemoveRule() {
+		$TestModel = new Article();
+		$Validator = $TestModel->validator();
+
+		$this->assertTrue(isset($Validator['title']));
+		$Validator->remove('title');
+		$this->assertFalse(isset($Validator['title']));
+
+		$Validator->add('other', 'numeric', array('rule' => 'numeric', 'allowEmpty' => false));
+		$Validator->add('other', 'range', array('rule' => array('between', 1, 5), 'allowEmpty' => false));
+		$this->assertTrue(isset($Validator['other']));
+
+		$Validator->remove('other', 'numeric');
+		$this->assertTrue(isset($Validator['other']));
+		$this->assertFalse(isset($Validator['other']['numeric']));
+		$this->assertTrue(isset($Validator['other']['range']));
+	}
 }