diff --git a/admin-dev/themes/template/helper/form/form.tpl b/admin-dev/themes/template/helper/form/form.tpl
index bf33dac9b..ac8fe0ff2 100644
--- a/admin-dev/themes/template/helper/form/form.tpl
+++ b/admin-dev/themes/template/helper/form/form.tpl
@@ -261,8 +261,6 @@
 								{include file='helper/assoshop.tpl' input=$input fields_value=$fields_value}
 							{elseif $input.type == 'categories'}
 								{include file='helper/form/form_category.tpl' categories=$input.values}
-							{elseif $input.type == 'categories_select'}
-								{$input.category_tree}
 							{elseif $input.type == 'asso_shop' && isset($asso_shop) && $asso_shop}
 									{$asso_shop}
 							{elseif $input.type == 'color'}
diff --git a/admin-dev/themes/template/products/form.tpl b/admin-dev/themes/template/products/form.tpl
index 1b2fa0cc6..8cefb482b 100644
--- a/admin-dev/themes/template/products/form.tpl
+++ b/admin-dev/themes/template/products/form.tpl
@@ -236,15 +236,6 @@
 				</p>
 				</div>
 		{/if}
-		{if isset($warning_unavailable_product)}
-			<div class="warn" >
-				<p>
-					<span style="float: left">
-					{l s='This product is active in this shop but it doesn\'t belong to any active category for this shop.'}
-					</span>
-				</p>
-			</div>
-		{/if}
 		{* all input are here *}
 			<div id="product-tab-content-wait" style="display:none" >{l s='loading ...'}</div>
 			{foreach $product_tabs key=numStep item=tab}
diff --git a/classes/Category.php b/classes/Category.php
index 126236c9b..2943ddc9d 100644
--- a/classes/Category.php
+++ b/classes/Category.php
@@ -663,10 +663,8 @@ class CategoryCore extends ObjectModel
 		SELECT c.`id_category`, cl.`name`, cl.`link_rewrite`
 		FROM `'._DB_PREFIX_.'category` c
 		LEFT JOIN `'._DB_PREFIX_.'category_lang` cl ON c.`id_category` = cl.`id_category`'.Context::getContext()->shop->addSqlRestrictionOnLang('cl').'
-		LEFT JOIN `'._DB_PREFIX_.'category_shop` cs ON c.`id_category` = cs.`id_category`
 		WHERE `id_lang` = '.(int)$id_lang.'
 		AND c.`id_parent` = '.(int)$id_parent.'
-		AND cs.`id_shop` = '.(int)Context::getContext()->shop->getID(true).'
 		'.($active ? 'AND `active` = 1' : '').'
 		ORDER BY `position` ASC');
 	}
@@ -715,10 +713,8 @@ class CategoryCore extends ObjectModel
 					)' : '0').' AS nbSelectedSubCat
 				FROM `'._DB_PREFIX_.'category` c
 				LEFT JOIN `'._DB_PREFIX_.'category_lang` cl ON c.`id_category` = cl.`id_category`'.$shop->addSqlRestrictionOnLang('cl').'
-				LEFT JOIN `'._DB_PREFIX_.'category_shop` cs ON c.`id_category` = cs.`id_category`
 				WHERE `id_lang` = '.(int)$id_lang.'
 					AND c.`id_parent` = '.(int)$id_parent.'
-					AND cs.`id_shop` = '.(int)$shop->getID(true).'
 				ORDER BY `position` ASC';
 		return Db::getInstance(_PS_USE_SQL_SLAVE_)->executeS($sql);
 	}
@@ -887,10 +883,7 @@ class CategoryCore extends ObjectModel
 				LEFT JOIN `'._DB_PREFIX_.'category_lang` cl
 					ON (c.`id_category` = cl.`id_category`
 					AND `id_lang` = '.(int)$id_lang.Context::getContext()->shop->addSqlRestrictionOnLang('cl').')
-				LEFT JOIN `'._DB_PREFIX_.'category_shop` cs
-					ON c.`id_category` = cs.`id_category`
 				WHERE c.`id_category` = '.(int)$id_current.'
-					AND cs.`id_shop` = '.(int)Context::getContext()->shop->getID(true).'
 					AND c.`id_parent` != 0
 			');
 
diff --git a/classes/Search.php b/classes/Search.php
index ccd902044..83eee8dc2 100644
--- a/classes/Search.php
+++ b/classes/Search.php
@@ -595,9 +595,7 @@ class SearchCore
 					LEFT JOIN `'._DB_PREFIX_.'tag` t ON (pt.`id_tag` = t.`id_tag` AND t.`id_lang` = '.(int)$id_lang.')
 					LEFT JOIN `'._DB_PREFIX_.'category_product` cp ON (cp.`id_product` = p.`id_product`)
 					LEFT JOIN `'._DB_PREFIX_.'category_group` cg ON (cg.`id_category` = cp.`id_category`)
-					LEFT JOIN `'._DB_PREFIX_.'category_shop` cs ON (cg.`id_category` = cs.`id_category`)
 					WHERE p.`active` = 1
-						AND cs.`id_shop` = '.(int)Context::getContext()->shop->getID().'
 						AND cg.`id_group` '.(!$id_customer ?  '= 1' : 'IN (
 							SELECT id_group FROM '._DB_PREFIX_.'customer_group
 							WHERE id_customer = '.(int)$id_customer.')').'
@@ -631,10 +629,8 @@ class SearchCore
 				LEFT JOIN `'._DB_PREFIX_.'tag` t ON (pt.`id_tag` = t.`id_tag` AND t.`id_lang` = '.(int)$id_lang.')
 				LEFT JOIN `'._DB_PREFIX_.'category_product` cp ON (cp.`id_product` = p.`id_product`)
 				LEFT JOIN `'._DB_PREFIX_.'category_group` cg ON (cg.`id_category` = cp.`id_category`)
-				LEFT JOIN `'._DB_PREFIX_.'category_shop` cs ON (cg.`id_category` = cs.`id_category`)
 				'.Product::sqlStock('p', 0).'
 				WHERE p.`active` = 1
-					AND cs.`id_shop` = '.(int)Context::getContext()->shop->getID().'
 					AND cg.`id_group` '.(!$id_customer ?  '= 1' : 'IN (
 						SELECT id_group FROM '._DB_PREFIX_.'customer_group
 						WHERE id_customer = '.(int)$id_customer.')').'
diff --git a/classes/shop/Shop.php b/classes/shop/Shop.php
index e51562d33..57196a565 100644
--- a/classes/shop/Shop.php
+++ b/classes/shop/Shop.php
@@ -889,104 +889,4 @@ class ShopCore extends ObjectModel
 				$without[] = $shop;
 		return $without;
 	}
-
-	public static function getCategories($id = 0)
-	{
-		// build query
-		$query = new DbQuery();
-		$query->select('id_category');
-		$query->from('category_shop');
-		$query->where('id_shop = '.(int)$id
-		);
-		$result = Db::getInstance(_PS_USE_SQL_SLAVE_)->executeS($query);
-
-		$array = array();
-		foreach ($result as $row)
-			$array[] = $row['id_category'];
-
-		return $array;
-	}
-
-	/**
-	* Update categories for a shop
-	*
-	* @param string $productCategories Categories list to associate a shop
-	* @return array Update/insertion result
-	*/
-	public function updateCategories($categories)
-	{
-		// if array is empty or if the default category is not selected, return false
-		if (empty($categories) || !in_array($this->id_category, $categories))
-			return false;
-
-		// delete categories for this shop
-		$this->deleteCategories();
-
-		// and add $categories to this shop
-		return $this->addToCategories($categories);
-	}
-
-	/**
-	 * Delete shop from category $id_category
-	 * @param int $id_category
-	 * @return bool
-	 */
-	public function deleteCategory($id_category)
-	{
-		return Db::getInstance()->execute(
-			'DELETE FROM `'._DB_PREFIX_.'category_shop`
-			WHERE `id_shop` = '.(int)$this->id.'
-			AND id_category = '.(int)$id_category.''
-		);
-	}
-
-	/**
-	 * Delete every categories
-	 * @return bool
-	 */
-	public function deleteCategories()
-	{
-		return Db::getInstance()->execute('
-		DELETE FROM `'._DB_PREFIX_.'category_shop` WHERE `id_shop` = '.(int)$this->id.'
-		');
-	}
-
-	/**
-	 * Add some categories to a shop
-	 * @param array $categories
-	 * @return bool
-	 */
-	public function addToCategories($categories)
-	{
-		$sql = '
-		INSERT INTO `'._DB_PREFIX_.'category_shop` (`id_category`, `id_shop`) VALUES';
-		foreach ($categories as $c)
-			$sql .= '("'.(int)$c.'", "'.(int)$this->id.'"),';
-		// removing last comma to avoid SQL error
-		$sql = substr($sql, 0, strlen($sql) - 1);
-
-		return Db::getInstance()->execute($sql);
-	}
-
-	public static function isCategoryAvailable($id_category)
-	{
-		return (bool)Db::getInstance()->getValue('
-		SELECT `id_category`
-		FROM `'._DB_PREFIX_.'category_shop`
-		WHERE `id_category` = '.(int)$id_category.'
-		AND `id_shop` = '.(int)Context::getContext()->shop->getID(true));
-	}
-
-	public static function isProductAvailable($id_product)
-	{
-		return (bool)Db::getInstance()->getValue('
-		SELECT p.`id_product`
-		FROM `'._DB_PREFIX_.'product` p
-		LEFT JOIN `'._DB_PREFIX_.'category_product` cp
-			ON p.`id_product` = cp.`id_product`
-		LEFT JOIN `'._DB_PREFIX_.'category_shop` cs
-			ON cp.`id_category` = cs.`id_category`
-		WHERE p.`id_product` = '.(int)$id_product.'
-		AND cs.`id_shop` = '.(int)Context::getContext()->shop->getID(true));
-	}
 }
diff --git a/controllers/admin/AdminCategoriesController.php b/controllers/admin/AdminCategoriesController.php
index 837da85ab..ce7279d00 100644
--- a/controllers/admin/AdminCategoriesController.php
+++ b/controllers/admin/AdminCategoriesController.php
@@ -170,8 +170,7 @@ class AdminCategoriesControllerCore extends AdminController
 	{
 		$this->initToolbar();
 		$obj = $this->loadObject(true);
-		$id_shop = Context::getContext()->shop->getID(true);
-		$selected_cat = array((isset($obj->id_parent) && $obj->isParentCategoryAvailable($id_shop))? $obj->id_parent : Tools::getValue('id_parent', 1));
+		$selected_cat = array(isset($obj->id_parent) ? $obj->id_parent : Tools::getValue('id_parent', 1));
 
 		$this->fields_form = array(
 			'tinymce' => true,
diff --git a/controllers/admin/AdminShopController.php b/controllers/admin/AdminShopController.php
index b87b825f4..00e96dafc 100755
--- a/controllers/admin/AdminShopController.php
+++ b/controllers/admin/AdminShopController.php
@@ -286,18 +286,6 @@ class AdminShopControllerCore extends AdminController
 			'category_tree' => $this->initCategoriesAssociation($this)
 		);
 
-		$categories = Category::getCategories($this->context->language->id, false, false);
-		$this->fields_form['input'][] = array(
-			'type' => 'select',
-			'label' => $this->l('Category root:'),
-			'name' => 'id_category',
-			'options' => array(
-				'query' => $categories,
-				'id' => 'id_category',
-				'name' => 'name'
-			)
-		);
-
 		$this->fields_form['input'][] = array(
 			'type' => 'radio',
 			'label' => $this->l('Status:'),
diff --git a/controllers/front/CategoryController.php b/controllers/front/CategoryController.php
index 4f069e080..c88f79e61 100644
--- a/controllers/front/CategoryController.php
+++ b/controllers/front/CategoryController.php
@@ -49,11 +49,6 @@ class CategoryControllerCore extends FrontController
 
 	public function canonicalRedirection($canonicalURL = '')
 	{
-		if (!Shop::isCategoryAvailable(Tools::getValue('id_category')))
-		{
-			$this->redirect_after = '404';
-			$this->redirect();
-		}
 		if (!Tools::getValue('noredirect') && Validate::isLoadedObject($this->category))
 			parent::canonicalRedirection($this->context->link->getCategoryLink($this->category));
 	}
diff --git a/install-dev/sql/db.sql b/install-dev/sql/db.sql
index ca6d5190b..9cbcbd439 100644
--- a/install-dev/sql/db.sql
+++ b/install-dev/sql/db.sql
@@ -2333,11 +2333,4 @@ CREATE TABLE `PREFIX_specific_price_rule_condition` (
 	`value` VARCHAR(255) NOT NULL,
 PRIMARY KEY (`id_specific_price_rule_condition`),
 INDEX (`id_specific_price_rule_condition_group`)
-) ENGINE=ENGINE_TYPE  DEFAULT CHARSET=utf8;
-
-CREATE TABLE `PREFIX_category_shop` (
-  `id_category` int(11) NOT NULL,
-  `id_shop` int(11) NOT NULL,
-  PRIMARY KEY (`id_category`, `id_shop`),
-  UNIQUE KEY `id_category_shop` (`id_category`,`id_shop`)
 ) ENGINE=ENGINE_TYPE  DEFAULT CHARSET=utf8;
\ No newline at end of file
diff --git a/install-dev/sql/db_settings_extends.sql b/install-dev/sql/db_settings_extends.sql
index 7025a760a..12c7e44f3 100644
--- a/install-dev/sql/db_settings_extends.sql
+++ b/install-dev/sql/db_settings_extends.sql
@@ -1725,10 +1725,6 @@ INSERT INTO `PREFIX_homeslider_slides_lang` (id_slide, id_lang, title, descripti
 (4, 5, "PHP.net", "PrestaShop use PHP, the well-known open-source technology", "php", "http://www.php.net", "sample-4.jpg"),
 (5, 5, "Smarty.net", "PrestaShop use the template engine Smarty (V3)", "Smarty", "http://www.smarty.net", "sample-5.jpg");
 
-INSERT INTO `PREFIX_category_shop` (`id_category`, `id_shop`) VALUES
-(2, 1),
-(3, 1),
-(4, 1);
 
 CREATE TABLE IF NOT EXISTS `PREFIX_linksmenutop` (
 	`id_link` INT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
diff --git a/install-dev/sql/db_settings_lite.sql b/install-dev/sql/db_settings_lite.sql
index 2b974b330..2dca0a3eb 100644
--- a/install-dev/sql/db_settings_lite.sql
+++ b/install-dev/sql/db_settings_lite.sql
@@ -1606,5 +1606,3 @@ INSERT INTO `PREFIX_supply_order_state_lang` (`id_supply_order_state`, `id_lang`
 (6, 3, 'order fenced'),
 (6, 4, 'order fenced'),
 (6, 5, 'order fenced');
-
-INSERT INTO `PREFIX_category_shop` (`id_category`, `id_shop`) VALUES (1, 1);
diff --git a/modules/blockcategories/blockcategories.php b/modules/blockcategories/blockcategories.php
index fc89441ea..7b7a57488 100644
--- a/modules/blockcategories/blockcategories.php
+++ b/modules/blockcategories/blockcategories.php
@@ -172,27 +172,23 @@ class BlockCategories extends Module
 		{*/
 			$maxdepth = Configuration::get('BLOCK_CATEG_MAX_DEPTH');
 			/*p('
-							SELECT c.id_parent, c.id_category, cl.name, cl.description, cl.link_rewrite
-							FROM `'._DB_PREFIX_.'category` c
-							LEFT JOIN `'._DB_PREFIX_.'category_lang` cl ON (c.`id_category` = cl.`id_category` AND cl.`id_lang` = '.$id_lang.$this->context->shop->addSqlRestrictionOnLang('cl').')
-							LEFT JOIN `'._DB_PREFIX_.'category_group` cg ON (cg.`id_category` = c.`id_category`)
-							LEFT JOIN `'._DB_PREFIX_.'category_shop` cs ON c.`id_category` = cs.`id_category`
-							WHERE (c.`active` = 1 OR c.`id_category` = 1)
-							'.((int)($maxdepth) != 0 ? ' AND `level_depth` <= '.(int)($maxdepth) : '').'
-							AND cg.`id_group` IN ('.pSQL($groups).')
-							AND cs.`id_shop` = '.(int)$id_current_shop.'
-							GROUP BY id_category
-							ORDER BY `level_depth` ASC, '.(Configuration::get('BLOCK_CATEG_SORT') ? 'cl.`name`' : 'c.`position`').' '.(Configuration::get('BLOCK_CATEG_SORT_WAY') ? 'DESC' : 'ASC'));*/
+				SELECT c.id_parent, c.id_category, cl.name, cl.description, cl.link_rewrite
+				FROM `'._DB_PREFIX_.'category` c
+				LEFT JOIN `'._DB_PREFIX_.'category_lang` cl ON (c.`id_category` = cl.`id_category` AND cl.`id_lang` = '.$id_lang.$this->context->shop->addSqlRestrictionOnLang('cl').')
+				LEFT JOIN `'._DB_PREFIX_.'category_group` cg ON (cg.`id_category` = c.`id_category`)
+				WHERE (c.`active` = 1 OR c.`id_category` = 1)
+				'.((int)($maxdepth) != 0 ? ' AND `level_depth` <= '.(int)($maxdepth) : '').'
+				AND cg.`id_group` IN ('.pSQL($groups).')
+				GROUP BY id_category
+				ORDER BY `level_depth` ASC, '.(Configuration::get('BLOCK_CATEG_SORT') ? 'cl.`name`' : 'c.`position`').' '.(Configuration::get('BLOCK_CATEG_SORT_WAY') ? 'DESC' : 'ASC'));*/
 			if (!$result = Db::getInstance(_PS_USE_SQL_SLAVE_)->executeS('
 				SELECT c.id_parent, c.id_category, cl.name, cl.description, cl.link_rewrite
 				FROM `'._DB_PREFIX_.'category` c
 				LEFT JOIN `'._DB_PREFIX_.'category_lang` cl ON (c.`id_category` = cl.`id_category` AND cl.`id_lang` = '.$id_lang.$this->context->shop->addSqlRestrictionOnLang('cl').')
 				LEFT JOIN `'._DB_PREFIX_.'category_group` cg ON (cg.`id_category` = c.`id_category`)
-				LEFT JOIN `'._DB_PREFIX_.'category_shop` cs ON c.`id_category` = cs.`id_category`
 				WHERE (c.`active` = 1 OR c.`id_category` = 1)
 				'.((int)($maxdepth) != 0 ? ' AND `level_depth` <= '.(int)($maxdepth) : '').'
 				AND cg.`id_group` IN ('.pSQL($groups).')
-				AND cs.`id_shop` = '.(int)$id_current_shop.'
 				GROUP BY id_category
 				ORDER BY `level_depth` ASC, '.(Configuration::get('BLOCK_CATEG_SORT') ? 'cl.`name`' : 'c.`position`').' '.(Configuration::get('BLOCK_CATEG_SORT_WAY') ? 'DESC' : 'ASC'))
 			)