diff --git a/__tryton__.py b/__tryton__.py
index 73588b136a..6cac398e90 100644
--- a/__tryton__.py
+++ b/__tryton__.py
@@ -4,6 +4,7 @@
 {
     'name' : 'Party',
     'name_bg_BG': 'Партньор',
+    'name_ca_ES': 'Tercers',
     'name_de_DE': 'Parteien',
     'name_es_CO': 'Terceros',
     'name_es_ES': 'Terceros',
@@ -16,6 +17,7 @@
     'website': 'http://www.tryton.org/',
     'description': 'Define parties, addresses and co.',
     'description_bg_BG': 'Задаване на партньори, адреси и тн.',
+    'description_ca_ES': 'Defineix tercers, direccions, etc.',
     'description_de_DE': 'Ermöglicht die Erstellung von Parteien, Adressen, etc.',
     'description_es_CO': 'Definición de terceros, direcciones, etc.',
     'description_es_ES': 'Define terceros, direcciones, etc...',
@@ -36,6 +38,7 @@
     ],
     'translation': [
         'locale/bg_BG.po',
+        'locale/ca_ES.po',
         'locale/cs_CZ.po',
         'locale/de_DE.po',
         'locale/es_CO.po',
diff --git a/locale/ca_ES.po b/locale/ca_ES.po
new file mode 100644
index 0000000000..2a9bf3a7c8
--- /dev/null
+++ b/locale/ca_ES.po
@@ -0,0 +1,586 @@
+#
+# Albert Cervera i Areny <albert@nan-tic.com>, 2011.
+msgid ""
+msgstr ""
+"Content-Type: text/plain; charset=UTF-8\n"
+"Last-Translator: Albert Cervera i Areny <albert@nan-tic.com>\n"
+"PO-Revision-Date: 2011-10-22 13:02+0200\n"
+"Project-Id-Version: \n"
+"Language-Team: Catalan <>\n"
+"Language: ca\n"
+"Content-Transfer-Encoding: 8bit\n"
+"X-Generator: Lokalize 1.2\n"
+"MIME-Version: 1.0\n"
+"Plural-Forms: nplurals=2; plural=n != 1;\n"
+
+msgctxt "error:party.address:0"
+msgid "You can not modify the party of an address!"
+msgstr "No pot modificar el tercer d'una adreça"
+
+msgctxt "error:party.category:0"
+msgid "You can not create recursive categories!"
+msgstr "No pot crear categories recursives"
+
+msgctxt "error:party.check_vies:0"
+msgid "The VIES service is unavailable, try again later."
+msgstr "El servei VIES no està disponible, intenti-ho de nou més tard"
+
+msgctxt "error:party.contact_mechanism:0"
+msgid "You can not modify the party of a contact mechanism!"
+msgstr "No pot modificar el tercer d'un contacte"
+
+msgctxt "error:party.party:0"
+msgid "Invalid VAT number!"
+msgstr "El NIF no és vàlid"
+
+msgctxt "error:party.party:0"
+msgid "The code of the party must be unique!"
+msgstr "El codi del tercer ha de ser únic"
+
+msgctxt "field:party.address,active:0"
+msgid "Active"
+msgstr "Actiu"
+
+msgctxt "field:party.address,city:0"
+msgid "City"
+msgstr "Ciutat"
+
+msgctxt "field:party.address,country:0"
+msgid "Country"
+msgstr "País"
+
+msgctxt "field:party.address,name:0"
+msgid "Name"
+msgstr "Contacte"
+
+msgctxt "field:party.address,party:0"
+msgid "Party"
+msgstr "Tercer"
+
+msgctxt "field:party.address,rec_name:0"
+msgid "Name"
+msgstr "Contacte"
+
+msgctxt "field:party.address,sequence:0"
+msgid "Sequence"
+msgstr "Seqüència"
+
+msgctxt "field:party.address,street:0"
+msgid "Street"
+msgstr "Carrer"
+
+msgctxt "field:party.address,streetbis:0"
+msgid "Street (bis)"
+msgstr "Carrer (bis)"
+
+msgctxt "field:party.address,subdivision:0"
+msgid "Subdivision"
+msgstr "Subdivisió"
+
+msgctxt "field:party.address,zip:0"
+msgid "Zip"
+msgstr "Codi postal"
+
+msgctxt "field:party.category,active:0"
+msgid "Active"
+msgstr "Actiu"
+
+msgctxt "field:party.category,childs:0"
+msgid "Children"
+msgstr "Fills"
+
+msgctxt "field:party.category,name:0"
+msgid "Name"
+msgstr "Nom"
+
+msgctxt "field:party.category,parent:0"
+msgid "Parent"
+msgstr "Pare"
+
+msgctxt "field:party.category,rec_name:0"
+msgid "Name"
+msgstr "Nom"
+
+msgctxt "field:party.check_vies.check,parties_failed:0"
+msgid "Parties Failed"
+msgstr "Tercers rebutjats"
+
+msgctxt "field:party.check_vies.check,parties_succeed:0"
+msgid "Parties Succeed"
+msgstr "Tercers acceptats"
+
+msgctxt "field:party.contact_mechanism,active:0"
+msgid "Active"
+msgstr "Actiu"
+
+msgctxt "field:party.contact_mechanism,comment:0"
+msgid "Comment"
+msgstr "Comentari"
+
+msgctxt "field:party.contact_mechanism,email:0"
+msgid "E-Mail"
+msgstr "Correu electrònic"
+
+msgctxt "field:party.contact_mechanism,other_value:0"
+msgid "Value"
+msgstr "Valor"
+
+msgctxt "field:party.contact_mechanism,party:0"
+msgid "Party"
+msgstr "Tercer"
+
+msgctxt "field:party.contact_mechanism,rec_name:0"
+msgid "Name"
+msgstr "Nom"
+
+msgctxt "field:party.contact_mechanism,sequence:0"
+msgid "Sequence"
+msgstr "Seqüència"
+
+msgctxt "field:party.contact_mechanism,sip:0"
+msgid "SIP"
+msgstr "SIP"
+
+msgctxt "field:party.contact_mechanism,skype:0"
+msgid "Skype"
+msgstr "Skype"
+
+msgctxt "field:party.contact_mechanism,type:0"
+msgid "Type"
+msgstr "Tipus"
+
+msgctxt "field:party.contact_mechanism,value:0"
+msgid "Value"
+msgstr "Valor"
+
+msgctxt "field:party.contact_mechanism,website:0"
+msgid "Website"
+msgstr "Lloc web"
+
+msgctxt "field:party.party,active:0"
+msgid "Active"
+msgstr "Actiu"
+
+msgctxt "field:party.party,addresses:0"
+msgid "Addresses"
+msgstr "Adreces"
+
+msgctxt "field:party.party,categories:0"
+msgid "Categories"
+msgstr "Categories"
+
+msgctxt "field:party.party,code:0"
+msgid "Code"
+msgstr "Codi"
+
+msgctxt "field:party.party,code_length:0"
+msgid "Code Length"
+msgstr "Dígits del codi"
+
+msgctxt "field:party.party,contact_mechanisms:0"
+msgid "Contact Mechanisms"
+msgstr "Mitjans de contacte"
+
+msgctxt "field:party.party,email:0"
+msgid "E-Mail"
+msgstr "Correu electrònic"
+
+msgctxt "field:party.party,fax:0"
+msgid "Fax"
+msgstr "Fax"
+
+msgctxt "field:party.party,lang:0"
+msgid "Language"
+msgstr "Idioma"
+
+msgctxt "field:party.party,mobile:0"
+msgid "Mobile"
+msgstr "Mòbil"
+
+msgctxt "field:party.party,name:0"
+msgid "Name"
+msgstr "Nom"
+
+msgctxt "field:party.party,phone:0"
+msgid "Phone"
+msgstr "Telèfon"
+
+msgctxt "field:party.party,rec_name:0"
+msgid "Name"
+msgstr "Nom"
+
+msgctxt "field:party.party,vat_code:0"
+msgid "VAT Code"
+msgstr "NIF"
+
+msgctxt "field:party.party,vat_country:0"
+msgid "VAT Country"
+msgstr "País del NIF"
+
+msgctxt "field:party.party,vat_number:0"
+msgid "VAT Number"
+msgstr "NIF"
+
+msgctxt "field:party.party,website:0"
+msgid "Website"
+msgstr "Lloc web"
+
+msgctxt "field:party.party-party.category,category:0"
+msgid "Category"
+msgstr "Categoria"
+
+msgctxt "field:party.party-party.category,party:0"
+msgid "Party"
+msgstr "Tercer"
+
+msgctxt "field:party.party-party.category,rec_name:0"
+msgid "Name"
+msgstr "Nom"
+
+msgctxt "help:party.party,vat_country:0"
+msgid "Setting VAT country will enable validation of the VAT number."
+msgstr "En especificar el país del NIF s'habilitarà la verificació del número."
+
+msgctxt "help:party.party,vat_number:0"
+msgid "Value Added Tax number"
+msgstr "Número d'identificació fiscal"
+
+msgctxt "model:ir.action,name:act_address_form"
+msgid "Addresses"
+msgstr "Adreces"
+
+msgctxt "model:ir.action,name:act_category_tree"
+msgid "Categories"
+msgstr "Categories"
+
+msgctxt "model:ir.action,name:act_party_by_category"
+msgid "Parties by Category"
+msgstr "Tercers per categoria"
+
+msgctxt "model:ir.action,name:act_party_form"
+msgid "Parties"
+msgstr "Tercers"
+
+msgctxt "model:ir.action,name:report_label"
+msgid "Labels"
+msgstr "Etiquetes"
+
+msgctxt "model:ir.action,name:wizard_check_vies"
+msgid "Check VIES"
+msgstr "Comprovar VIES"
+
+msgctxt "model:ir.sequence,name:sequence_party"
+msgid "Party"
+msgstr "Tercer"
+
+msgctxt "model:ir.sequence.type,name:sequence_type_party"
+msgid "Party"
+msgstr "Tercer"
+
+msgctxt "model:ir.ui.menu,name:menu_address_form"
+msgid "Addresses"
+msgstr "Adreces"
+
+msgctxt "model:ir.ui.menu,name:menu_category_tree"
+msgid "Categories"
+msgstr "Categories"
+
+msgctxt "model:ir.ui.menu,name:menu_configuration"
+msgid "Configuration"
+msgstr "Configuració"
+
+msgctxt "model:ir.ui.menu,name:menu_party"
+msgid "Party Management"
+msgstr "Gestió de tercers"
+
+msgctxt "model:ir.ui.menu,name:menu_party_form"
+msgid "Parties"
+msgstr "Tercers"
+
+msgctxt "model:party.address,name:0"
+msgid "Address"
+msgstr "Adreça"
+
+msgctxt "model:party.category,name:0"
+msgid "Category"
+msgstr "Categoria"
+
+msgctxt "model:party.check_vies.check,name:0"
+msgid "Check VIES - Check"
+msgstr "Comprovació VIES - Comprovar"
+
+msgctxt "model:party.check_vies.no_check,name:0"
+msgid "Check VIES - No Check"
+msgstr "Comprovació VIES - No comprovar"
+
+msgctxt "model:party.contact_mechanism,name:0"
+msgid "Contact Mechanism"
+msgstr "Mitjà de contacte"
+
+msgctxt "model:party.party,name:0"
+msgid "Party"
+msgstr "Tercer"
+
+msgctxt "model:party.party-party.category,name:0"
+msgid "Party - Category"
+msgstr "Tercer - Categoria"
+
+msgctxt "model:res.group,name:group_party_admin"
+msgid "Party Administration"
+msgstr "Administració de tercers"
+
+msgctxt "selection:party.contact_mechanism,type:0"
+msgid "E-Mail"
+msgstr "Correu electrònic"
+
+msgctxt "selection:party.contact_mechanism,type:0"
+msgid "Fax"
+msgstr "Fax"
+
+msgctxt "selection:party.contact_mechanism,type:0"
+msgid "IRC"
+msgstr "IRC"
+
+msgctxt "selection:party.contact_mechanism,type:0"
+msgid "Jabber"
+msgstr "Jabber"
+
+msgctxt "selection:party.contact_mechanism,type:0"
+msgid "Mobile"
+msgstr "Mòbil"
+
+msgctxt "selection:party.contact_mechanism,type:0"
+msgid "Other"
+msgstr "Un altre"
+
+msgctxt "selection:party.contact_mechanism,type:0"
+msgid "Phone"
+msgstr "Telèfon"
+
+msgctxt "selection:party.contact_mechanism,type:0"
+msgid "SIP"
+msgstr "SIP"
+
+msgctxt "selection:party.contact_mechanism,type:0"
+msgid "Skype"
+msgstr "Skype"
+
+msgctxt "selection:party.contact_mechanism,type:0"
+msgid "Website"
+msgstr "Lloc Web"
+
+msgctxt "selection:party.party,vat_country:0"
+msgid "AL"
+msgstr "AL"
+
+msgctxt "selection:party.party,vat_country:0"
+msgid "AT"
+msgstr "AT"
+
+msgctxt "selection:party.party,vat_country:0"
+msgid "BE"
+msgstr "BE"
+
+msgctxt "selection:party.party,vat_country:0"
+msgid "BG"
+msgstr "BG"
+
+msgctxt "selection:party.party,vat_country:0"
+msgid "CY"
+msgstr "CY"
+
+msgctxt "selection:party.party,vat_country:0"
+msgid "CZ"
+msgstr "CZ"
+
+msgctxt "selection:party.party,vat_country:0"
+msgid "DE"
+msgstr "DE"
+
+msgctxt "selection:party.party,vat_country:0"
+msgid "DK"
+msgstr "DK"
+
+msgctxt "selection:party.party,vat_country:0"
+msgid "EE"
+msgstr "EE"
+
+msgctxt "selection:party.party,vat_country:0"
+msgid "EL"
+msgstr "EL"
+
+msgctxt "selection:party.party,vat_country:0"
+msgid "ES"
+msgstr "ES"
+
+msgctxt "selection:party.party,vat_country:0"
+msgid "FI"
+msgstr "FI"
+
+msgctxt "selection:party.party,vat_country:0"
+msgid "FR"
+msgstr "FR"
+
+msgctxt "selection:party.party,vat_country:0"
+msgid "GB"
+msgstr "GB"
+
+msgctxt "selection:party.party,vat_country:0"
+msgid "GR"
+msgstr "GR"
+
+msgctxt "selection:party.party,vat_country:0"
+msgid "HU"
+msgstr "HU"
+
+msgctxt "selection:party.party,vat_country:0"
+msgid "IE"
+msgstr "IE"
+
+msgctxt "selection:party.party,vat_country:0"
+msgid "IT"
+msgstr "IT"
+
+msgctxt "selection:party.party,vat_country:0"
+msgid "LT"
+msgstr "LT"
+
+msgctxt "selection:party.party,vat_country:0"
+msgid "LU"
+msgstr "LU"
+
+msgctxt "selection:party.party,vat_country:0"
+msgid "LV"
+msgstr "LV"
+
+msgctxt "selection:party.party,vat_country:0"
+msgid "MT"
+msgstr "MT"
+
+msgctxt "selection:party.party,vat_country:0"
+msgid "NL"
+msgstr "NL"
+
+msgctxt "selection:party.party,vat_country:0"
+msgid "PL"
+msgstr "PL"
+
+msgctxt "selection:party.party,vat_country:0"
+msgid "PT"
+msgstr "PT"
+
+msgctxt "selection:party.party,vat_country:0"
+msgid "RO"
+msgstr "RO"
+
+msgctxt "selection:party.party,vat_country:0"
+msgid "SE"
+msgstr "ES"
+
+msgctxt "selection:party.party,vat_country:0"
+msgid "SI"
+msgstr "SI"
+
+msgctxt "selection:party.party,vat_country:0"
+msgid "SK"
+msgstr "SK"
+
+msgctxt "selection:party.party,vat_country:0"
+msgid "SM"
+msgstr "SM"
+
+msgctxt "selection:party.party,vat_country:0"
+msgid "UA"
+msgstr "UA"
+
+msgctxt "selection:party.party,vat_country:0"
+msgid "UK"
+msgstr "UK"
+
+msgctxt "view:party.address:0"
+msgid "Addresses"
+msgstr "Adreces"
+
+msgctxt "view:party.category:0"
+msgid "Categories"
+msgstr "Categories"
+
+msgctxt "view:party.category:0"
+msgid "Category"
+msgstr "Categoria"
+
+msgctxt "view:party.check_vies.check:0"
+msgid "Parties Failed"
+msgstr "Tercers rebutjats"
+
+msgctxt "view:party.check_vies.check:0"
+msgid "Parties Succeed"
+msgstr "Tercers acceptats"
+
+msgctxt "view:party.check_vies.check:0"
+msgid "VAT Information Exchange System Results"
+msgstr "Resultat del sistema d'intercanvi d'informació d'IVA"
+
+msgctxt "view:party.check_vies.no_check:0"
+msgid "VAT Information Exchange System"
+msgstr "Sistema d'intercanvi d'informació d'IVA"
+
+msgctxt "view:party.check_vies.no_check:0"
+msgid "You must have a recent version of \"vatnumber\" installed!"
+msgstr "Necessita instal·lar una versió més actualitzada de «vatnumber»"
+
+msgctxt "view:party.contact_mechanism:0"
+msgid "Contact Mechanism"
+msgstr "Mitjà de contacte"
+
+msgctxt "view:party.contact_mechanism:0"
+msgid "Contact Mechanisms"
+msgstr "Mitjà de contacte"
+
+msgctxt "view:party.party:0"
+msgid "Accounting"
+msgstr "Comptabilitat"
+
+msgctxt "view:party.party:0"
+msgid "Addresses"
+msgstr "Adreces"
+
+msgctxt "view:party.party:0"
+msgid "Categories"
+msgstr "Categories"
+
+msgctxt "view:party.party:0"
+msgid "Contact Mechanisms"
+msgstr "Mitjans de contacte"
+
+msgctxt "view:party.party:0"
+msgid "General"
+msgstr "General"
+
+msgctxt "view:party.party:0"
+msgid "Parties"
+msgstr "Tercers"
+
+msgctxt "view:party.party:0"
+msgid "Party"
+msgstr "Tercer"
+
+msgctxt "view:party.party:0"
+msgid "VAT"
+msgstr "NIF"
+
+msgctxt "view:party.party:0"
+msgid "Account"
+msgstr "Compte"
+
+msgctxt "view:party.party:0"
+msgid "_General"
+msgstr "_General"
+
+msgctxt "wizard_button:party.check_vies,check,end:0"
+msgid "Ok"
+msgstr "Acceptar"
+
+msgctxt "wizard_button:party.check_vies,no_check,end:0"
+msgid "Ok"
+msgstr "Acceptar"