diff --git a/openerp/addons/base/__openerp__.py b/openerp/addons/base/__openerp__.py
index 590d3b11a87..a5265ba694c 100644
--- a/openerp/addons/base/__openerp__.py
+++ b/openerp/addons/base/__openerp__.py
@@ -98,7 +98,6 @@ The kernel of OpenERP, needed for all installation.
     ],
     'installable': True,
     'auto_install': True,
-    'certificate': '0076807797149',
     'css': ['static/src/css/modules.css'],
 }
 # vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4:
diff --git a/openerp/addons/base/base.sql b/openerp/addons/base/base.sql
index 441fe536a0a..c490df32294 100644
--- a/openerp/addons/base/base.sql
+++ b/openerp/addons/base/base.sql
@@ -294,7 +294,6 @@ CREATE TABLE ir_module_module (
     shortdesc character varying(256),
     complexity character varying(32),
     category_id integer REFERENCES ir_module_category ON DELETE SET NULL,
-    certificate character varying(64),
     description text,
     application boolean default False,
     demo boolean default False,
diff --git a/openerp/addons/base/module/module.py b/openerp/addons/base/module/module.py
index 617a31dae66..7621d5907ba 100644
--- a/openerp/addons/base/module/module.py
+++ b/openerp/addons/base/module/module.py
@@ -237,7 +237,6 @@ class module(osv.osv):
         'menus_by_module': fields.function(_get_views, string='Menus', type='text', multi="meta", store=True),
         'reports_by_module': fields.function(_get_views, string='Reports', type='text', multi="meta", store=True),
         'views_by_module': fields.function(_get_views, string='Views', type='text', multi="meta", store=True),
-        'certificate' : fields.char('Quality Certificate', size=64, readonly=True),
         'application': fields.boolean('Application', readonly=True),
         'icon': fields.char('Icon URL', size=128),
         'icon_image': fields.function(_get_icon_image, string='Icon', type="binary"),
@@ -253,12 +252,9 @@ class module(osv.osv):
 
     def _name_uniq_msg(self, cr, uid, ids, context=None):
         return _('The name of the module must be unique !')
-    def _certificate_uniq_msg(self, cr, uid, ids, context=None):
-        return _('The certificate ID of the module must be unique !')
 
     _sql_constraints = [
         ('name_uniq', 'UNIQUE (name)',_name_uniq_msg ),
-        ('certificate_uniq', 'UNIQUE (certificate)',_certificate_uniq_msg )
     ]
 
     def unlink(self, cr, uid, ids, context=None):
@@ -511,7 +507,6 @@ class module(osv.osv):
             'contributors': ', '.join(terp.get('contributors', [])) or False,
             'website': terp.get('website', ''),
             'license': terp.get('license', 'AGPL-3'),
-            'certificate': terp.get('certificate') or False,
             'sequence': terp.get('sequence', 100),
             'application': terp.get('application', False),
             'auto_install': terp.get('auto_install', False),
@@ -677,14 +672,6 @@ class module(osv.osv):
             if not mod.description:
                 _logger.warning('module %s: description is empty !', mod.name)
 
-            if not mod.certificate or not mod.certificate.isdigit():
-                _logger.info('module %s: no quality certificate', mod.name)
-            else:
-                val = long(mod.certificate[2:]) % 97 == 29
-                if not val:
-                    _logger.critical('module %s: invalid quality certificate: %s', mod.name, mod.certificate)
-                    raise osv.except_osv(_('Error'), _('Module %s: Invalid Quality Certificate') % (mod.name,))
-
 class module_dependency(osv.osv):
     _name = "ir.module.module.dependency"
     _description = "Module dependency"
diff --git a/openerp/modules/db.py b/openerp/modules/db.py
index 1bf7b5237f1..6318bd954f3 100644
--- a/openerp/modules/db.py
+++ b/openerp/modules/db.py
@@ -74,12 +74,12 @@ def initialize(cr):
 
         cr.execute('INSERT INTO ir_module_module \
                 (author, website, name, shortdesc, description, \
-                    category_id, auto_install, state, certificate, web, license, application, icon, sequence, summary) \
-                VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s) RETURNING id', (
+                    category_id, auto_install, state, web, license, application, icon, sequence, summary) \
+                VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s) RETURNING id', (
             info['author'],
             info['website'], i, info['name'],
             info['description'], category_id,
-            info['auto_install'], state, info['certificate'],
+            info['auto_install'], state,
             info['web'],
             info['license'],
             info['application'], info['icon'],
diff --git a/openerp/modules/loading.py b/openerp/modules/loading.py
index 86e69fa64ba..57fb92a6ee0 100644
--- a/openerp/modules/loading.py
+++ b/openerp/modules/loading.py
@@ -61,7 +61,7 @@ def load_module_graph(cr, graph, status=None, perform_checks=True, skip_modules=
        :param graph: graph of module nodes to load
        :param status: status dictionary for keeping track of progress
        :param perform_checks: whether module descriptors should be checked for validity (prints warnings
-                              for same cases, and even raise osv_except if certificate is invalid)
+                              for same cases)
        :param skip_modules: optional list of module names (packages) which have previously been loaded and can be skipped
        :return: list of modules that were installed or updated
     """
diff --git a/openerp/modules/module.py b/openerp/modules/module.py
index 540a23c5bcd..6ec9e86340c 100644
--- a/openerp/modules/module.py
+++ b/openerp/modules/module.py
@@ -331,7 +331,6 @@ def load_information_from_description_file(module):
                 'author': '',
                 'auto_install': False,
                 'category': 'Uncategorized',
-                'certificate': None,
                 'depends': [],
                 'description': '',
                 'icon': get_module_icon(module),