diff --git a/mgmtsystem_nonconformity/data/mail_message_subtype.xml b/mgmtsystem_nonconformity/data/mail_message_subtype.xml
index 0cf8ef31d2e2..77e16e7824bd 100644
--- a/mgmtsystem_nonconformity/data/mail_message_subtype.xml
+++ b/mgmtsystem_nonconformity/data/mail_message_subtype.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8" ?>
 <odoo noupdate="1">
 
     <!-- Not used at the moment. To use them override the _track_subtype method -->
diff --git a/mgmtsystem_nonconformity/data/mgmtsystem_nonconformity_cause.xml b/mgmtsystem_nonconformity/data/mgmtsystem_nonconformity_cause.xml
index 868adf677460..f79407fb8bd3 100644
--- a/mgmtsystem_nonconformity/data/mgmtsystem_nonconformity_cause.xml
+++ b/mgmtsystem_nonconformity/data/mgmtsystem_nonconformity_cause.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8" ?>
 <odoo noupdate="1">
 
     <record id="badly_defined_need" model="mgmtsystem.nonconformity.cause">
diff --git a/mgmtsystem_nonconformity/data/mgmtsystem_nonconformity_origin.xml b/mgmtsystem_nonconformity/data/mgmtsystem_nonconformity_origin.xml
index da0cf326ab03..89e282ef0f5a 100644
--- a/mgmtsystem_nonconformity/data/mgmtsystem_nonconformity_origin.xml
+++ b/mgmtsystem_nonconformity/data/mgmtsystem_nonconformity_origin.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8" ?>
 <odoo noupdate="1">
 
     <record id="nc_origin_qc" model="mgmtsystem.nonconformity.origin">
diff --git a/mgmtsystem_nonconformity/data/mgmtsystem_nonconformity_severity.xml b/mgmtsystem_nonconformity/data/mgmtsystem_nonconformity_severity.xml
index e8f115b0ce57..a76d9992733c 100644
--- a/mgmtsystem_nonconformity/data/mgmtsystem_nonconformity_severity.xml
+++ b/mgmtsystem_nonconformity/data/mgmtsystem_nonconformity_severity.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8" ?>
 <odoo noupdate="1">
 
     <record id="nonconformity_severity_maj" model="mgmtsystem.nonconformity.severity">
diff --git a/mgmtsystem_nonconformity/data/mgmtsystem_nonconformity_stage.xml b/mgmtsystem_nonconformity/data/mgmtsystem_nonconformity_stage.xml
index 7ef540a067f8..ad4aaf8bb3f4 100644
--- a/mgmtsystem_nonconformity/data/mgmtsystem_nonconformity_stage.xml
+++ b/mgmtsystem_nonconformity/data/mgmtsystem_nonconformity_stage.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8" ?>
 <odoo noupdate="1">
   <record id="stage_draft" model="mgmtsystem.nonconformity.stage">
     <field name="name">Draft</field>
diff --git a/mgmtsystem_nonconformity/data/sequence.xml b/mgmtsystem_nonconformity/data/sequence.xml
index efbe6c71c1ea..f0011e761267 100644
--- a/mgmtsystem_nonconformity/data/sequence.xml
+++ b/mgmtsystem_nonconformity/data/sequence.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8" ?>
 <odoo noupdate="1">
 
     <record id="seq_mgmtsystem_nonconformity" model="ir.sequence">
diff --git a/mgmtsystem_nonconformity/demo/mgmtsystem_nonconformity.xml b/mgmtsystem_nonconformity/demo/mgmtsystem_nonconformity.xml
index 1687253ba242..d604b812d241 100644
--- a/mgmtsystem_nonconformity/demo/mgmtsystem_nonconformity.xml
+++ b/mgmtsystem_nonconformity/demo/mgmtsystem_nonconformity.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8" ?>
 <odoo>
 
     <record id="demo_nonconformity" model="mgmtsystem.nonconformity">
diff --git a/mgmtsystem_nonconformity/demo/mgmtsystem_nonconformity_cause.xml b/mgmtsystem_nonconformity/demo/mgmtsystem_nonconformity_cause.xml
index 736e50cab210..983cfd46acb6 100644
--- a/mgmtsystem_nonconformity/demo/mgmtsystem_nonconformity_cause.xml
+++ b/mgmtsystem_nonconformity/demo/mgmtsystem_nonconformity_cause.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8" ?>
 <odoo noupdate="1">
 
     <record id="demo_cause" model="mgmtsystem.nonconformity.cause">
diff --git a/mgmtsystem_nonconformity/demo/mgmtsystem_nonconformity_origin.xml b/mgmtsystem_nonconformity/demo/mgmtsystem_nonconformity_origin.xml
index 138a6239dd7a..8d8acba3ecff 100644
--- a/mgmtsystem_nonconformity/demo/mgmtsystem_nonconformity_origin.xml
+++ b/mgmtsystem_nonconformity/demo/mgmtsystem_nonconformity_origin.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8" ?>
 <odoo noupdate="1">
 
     <record id="demo_origin" model="mgmtsystem.nonconformity.origin">
diff --git a/mgmtsystem_nonconformity/reports/mgmtsystem_nonconformity_report.xml b/mgmtsystem_nonconformity/reports/mgmtsystem_nonconformity_report.xml
index a9785d968e61..8965d107807b 100644
--- a/mgmtsystem_nonconformity/reports/mgmtsystem_nonconformity_report.xml
+++ b/mgmtsystem_nonconformity/reports/mgmtsystem_nonconformity_report.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8" ?>
 <odoo>
 
         <!-- Management System Non Conformity Report Pivot View -->
diff --git a/mgmtsystem_nonconformity/security/mgmtsystem_nonconformity_security.xml b/mgmtsystem_nonconformity/security/mgmtsystem_nonconformity_security.xml
index 82aa51b7e3b4..34a3d0f4d371 100644
--- a/mgmtsystem_nonconformity/security/mgmtsystem_nonconformity_security.xml
+++ b/mgmtsystem_nonconformity/security/mgmtsystem_nonconformity_security.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8" ?>
 <odoo noupdate="1">
 
     <!-- Rule -->
diff --git a/mgmtsystem_nonconformity/static/src/components/chatter_topbar/chatter_topbar.xml b/mgmtsystem_nonconformity/static/src/components/chatter_topbar/chatter_topbar.xml
index 4e71ea3c6012..6ffc9899a2e3 100644
--- a/mgmtsystem_nonconformity/static/src/components/chatter_topbar/chatter_topbar.xml
+++ b/mgmtsystem_nonconformity/static/src/components/chatter_topbar/chatter_topbar.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="UTF-8" ?>
 <templates xml:space="preserve">
 
     <t
diff --git a/mgmtsystem_nonconformity/views/mgmtsystem_action.xml b/mgmtsystem_nonconformity/views/mgmtsystem_action.xml
index 18b3ced2154f..bb00f6944d1e 100644
--- a/mgmtsystem_nonconformity/views/mgmtsystem_action.xml
+++ b/mgmtsystem_nonconformity/views/mgmtsystem_action.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8" ?>
 <odoo>
 
     <!-- Actions: add link to NCs -->
diff --git a/mgmtsystem_nonconformity/views/mgmtsystem_cause.xml b/mgmtsystem_nonconformity/views/mgmtsystem_cause.xml
index 65172f18efdb..45d4684431ff 100644
--- a/mgmtsystem_nonconformity/views/mgmtsystem_cause.xml
+++ b/mgmtsystem_nonconformity/views/mgmtsystem_cause.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8" ?>
 <odoo>
     <!-- Cause -->
 
diff --git a/mgmtsystem_nonconformity/views/mgmtsystem_nonconformity.xml b/mgmtsystem_nonconformity/views/mgmtsystem_nonconformity.xml
index 125de18d2671..41de3d43a70e 100644
--- a/mgmtsystem_nonconformity/views/mgmtsystem_nonconformity.xml
+++ b/mgmtsystem_nonconformity/views/mgmtsystem_nonconformity.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8" ?>
 <odoo>
 
     <menuitem
diff --git a/mgmtsystem_nonconformity/views/mgmtsystem_nonconformity_stage.xml b/mgmtsystem_nonconformity/views/mgmtsystem_nonconformity_stage.xml
index 3ee4977b9e2f..3e9656a88b85 100644
--- a/mgmtsystem_nonconformity/views/mgmtsystem_nonconformity_stage.xml
+++ b/mgmtsystem_nonconformity/views/mgmtsystem_nonconformity_stage.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8" ?>
 <odoo>
 
     <record model="ir.ui.view" id="mgmtsystem_nonconformity_stage_tree_view">
diff --git a/mgmtsystem_nonconformity/views/mgmtsystem_origin.xml b/mgmtsystem_nonconformity/views/mgmtsystem_origin.xml
index 56b62adfaea8..54e9a2731d1d 100644
--- a/mgmtsystem_nonconformity/views/mgmtsystem_origin.xml
+++ b/mgmtsystem_nonconformity/views/mgmtsystem_origin.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8" ?>
 <odoo>
 
     <!-- Origin -->
diff --git a/mgmtsystem_nonconformity/views/mgmtsystem_severity.xml b/mgmtsystem_nonconformity/views/mgmtsystem_severity.xml
index 5b67e5c25a83..b828978c5a98 100644
--- a/mgmtsystem_nonconformity/views/mgmtsystem_severity.xml
+++ b/mgmtsystem_nonconformity/views/mgmtsystem_severity.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8" ?>
 <odoo>
     <!-- Severity -->