diff --git a/server/services/src/main/java/org/zanata/rest/editor/service/ProjectService.java b/server/services/src/main/java/org/zanata/rest/editor/service/ProjectService.java
index 657ae52b69..29de7b9412 100644
--- a/server/services/src/main/java/org/zanata/rest/editor/service/ProjectService.java
+++ b/server/services/src/main/java/org/zanata/rest/editor/service/ProjectService.java
@@ -19,7 +19,6 @@
 import org.zanata.rest.service.ETagUtils;
 import org.zanata.rest.editor.service.resource.ProjectResource;
 import org.zanata.service.ValidationService;
-import org.zanata.webtrans.shared.model.ProjectIterationId;
 import org.zanata.webtrans.shared.model.ValidationAction;
 import org.zanata.webtrans.shared.model.ValidationId;
 
diff --git a/server/zanata-frontend/src/app/editor/components/SettingOption/index.js b/server/zanata-frontend/src/app/editor/components/SettingOption/index.js
index 7a6bdab5c1..24f84bf5a4 100644
--- a/server/zanata-frontend/src/app/editor/components/SettingOption/index.js
+++ b/server/zanata-frontend/src/app/editor/components/SettingOption/index.js
@@ -8,7 +8,8 @@ class SettingOption extends React.Component {
     label: PropTypes.string.isRequired,
     active: PropTypes.bool.isRequired,
     /* arguments: (string: settingId, bool: active) */
-    updateSetting: PropTypes.func.isRequired
+    updateSetting: PropTypes.func.isRequired,
+    disabled: PropTypes.bool
   }
 
   updateSetting = (event) => {
@@ -16,9 +17,10 @@ class SettingOption extends React.Component {
   }
 
   render () {
-    const { label, active } = this.props
+    const { label, active, disabled } = this.props
     return (
       <Checkbox checked={active}
+        disabled={disabled}
         onChange={this.updateSetting}>
         &nbsp;{label}
       </Checkbox>
diff --git a/server/zanata-frontend/src/app/editor/components/SettingsOptions/index.js b/server/zanata-frontend/src/app/editor/components/SettingsOptions/index.js
index 332aa57409..b473b16bb8 100644
--- a/server/zanata-frontend/src/app/editor/components/SettingsOptions/index.js
+++ b/server/zanata-frontend/src/app/editor/components/SettingsOptions/index.js
@@ -3,11 +3,12 @@ import React from 'react'
 import * as PropTypes from 'prop-types'
 import SettingOption from '../SettingOption'
 
-const SettingsOptions = ({settings, updateSetting}) => {
+const SettingsOptions = ({settings, updateSetting, disabled}) => {
   const checkboxes = settings.map((setting, index) => (
     <li key={index}>
       <SettingOption
         updateSetting={updateSetting}
+        disabled={disabled}
         {...setting} />
     </li>
   ))
@@ -27,7 +28,8 @@ SettingsOptions.propTypes = {
     active: PropTypes.bool.isRequired
   })).isRequired,
   /* arguments: (string: settingId, bool: active) */
-  updateSetting: PropTypes.func.isRequired
+  updateSetting: PropTypes.func.isRequired,
+  disabled: PropTypes.bool
 }
 
 export default SettingsOptions
diff --git a/server/zanata-frontend/src/app/editor/containers/SettingsPanel.js b/server/zanata-frontend/src/app/editor/containers/SettingsPanel.js
index 5f118eda84..f19561a0c9 100644
--- a/server/zanata-frontend/src/app/editor/containers/SettingsPanel.js
+++ b/server/zanata-frontend/src/app/editor/containers/SettingsPanel.js
@@ -34,6 +34,12 @@ import {
   PRINTF_XSI_EXTENSION
 } from '../reducers/settings-reducer'
 
+// Validator error types
+// TODO: convert to tuple
+export const ERROR = 'Error'
+export const WARNING = 'Warning'
+export const OFF = 'Off'
+
 export const SettingsPanel = ({
   enterSavesImmediately,
   syntaxHighligting,
@@ -50,6 +56,9 @@ export const SettingsPanel = ({
   isRTL
 }) => {
   const directionClass = isRTL ? 'rtl' : 'ltr'
+  const validatorChecked = (validator) => {
+    return (validator === ERROR || validator === WARNING)
+  }
   return (
     <div>
       <h1 className="SidebarEditor-heading">
@@ -83,37 +92,40 @@ export const SettingsPanel = ({
               {
                 id: HTML_XML,
                 label: 'HTML/XML tags',
-                active: validateHtmlXml
+                active: validatorChecked(validateHtmlXml),
+                disabled: validateHtmlXml === ERROR
               },
               {
                 id: JAVA_VARIABLES,
                 label: 'Java variables',
-                active: validateJavaVariables
+                active: validatorChecked(validateJavaVariables),
+                disabled: validateJavaVariables === ERROR
               },
               {
                 id: NEW_LINE,
                 label: 'Leading/trailing newline (\\n)',
-                active: validateNewLine
+                active: validatorChecked(validateNewLine),
+                disabled: validateNewLine === ERROR
               },
               {
                 id: PRINTF_XSI_EXTENSION,
                 label: 'Positional printf (XSI extention)',
-                active: validatePrintfXsi
+                active: validatorChecked(validatePrintfXsi)
               },
               {
                 id: PRINTF_VARIABLES,
                 label: 'Printf variables',
-                active: validatePrintfVariables
+                active: validatorChecked(validatePrintfVariables)
               },
               {
                 id: TAB,
                 label: 'Tab characters (\\t)',
-                active: validateTab
+                active: validatorChecked(validateTab)
               },
               {
                 id: XML_ENTITY,
                 label: 'XML entity reference',
-                active: validateXmlEntity
+                active: validatorChecked(validateXmlEntity)
               }
             ]}
             updateSetting={updateValidationSetting} />
@@ -126,13 +138,13 @@ export const SettingsPanel = ({
 SettingsPanel.propTypes = {
   enterSavesImmediately: PropTypes.bool.isRequired,
   syntaxHighligting: PropTypes.bool.isRequired,
-  validateHtmlXml: PropTypes.bool.isRequired,
-  validateNewLine: PropTypes.bool.isRequired,
-  validateTab: PropTypes.bool.isRequired,
-  validateJavaVariables: PropTypes.bool.isRequired,
-  validateXmlEntity: PropTypes.bool.isRequired,
-  validatePrintfVariables: PropTypes.bool.isRequired,
-  validatePrintfXsi: PropTypes.bool.isRequired,
+  validateHtmlXml: PropTypes.string.isRequired,
+  validateNewLine: PropTypes.string.isRequired,
+  validateTab: PropTypes.string.isRequired,
+  validateJavaVariables: PropTypes.string.isRequired,
+  validateXmlEntity: PropTypes.string.isRequired,
+  validatePrintfVariables: PropTypes.string.isRequired,
+  validatePrintfXsi: PropTypes.string.isRequired,
   hideSettings: PropTypes.func.isRequired,
   updateSetting: PropTypes.func.isRequired,
   updateValidationSetting: PropTypes.func.isRequired,
diff --git a/server/zanata-frontend/src/app/editor/reducers/settings-reducer.js b/server/zanata-frontend/src/app/editor/reducers/settings-reducer.js
index 1c8992242c..380e251d70 100644
--- a/server/zanata-frontend/src/app/editor/reducers/settings-reducer.js
+++ b/server/zanata-frontend/src/app/editor/reducers/settings-reducer.js
@@ -10,7 +10,8 @@ import {
   SETTING_UPDATE,
   SETTINGS_SAVE_REQUEST,
   SETTINGS_SAVE_SUCCESS,
-  SETTINGS_SAVE_FAILURE
+  SETTINGS_SAVE_FAILURE,
+  VALIDATORS_SUCCESS
 } from '../actions/settings-action-types'
 import { SHORTCUTS } from '../actions/key-shortcuts-actions'
 
@@ -20,13 +21,13 @@ export const SUGGESTIONS_DIFF = 'suggestions-diff'
 export const KEY_SUGGESTIONS_VISIBLE = 'suggestions-visible'
 
 /* Validation Options */
-export const HTML_XML = 'html-xml-tags'
-export const NEW_LINE = 'leading-trailing-newline'
-export const TAB = 'tab-characters'
-export const JAVA_VARIABLES = 'java-variables'
-export const XML_ENTITY = 'xml-entity-reference'
-export const PRINTF_VARIABLES = 'printf-variables'
-export const PRINTF_XSI_EXTENSION = 'positional-printf-xsi'
+export const HTML_XML = 'HTML_XML'
+export const NEW_LINE = 'NEW_LINE'
+export const TAB = 'TAB'
+export const JAVA_VARIABLES = 'JAVA_VARIABLES'
+export const XML_ENTITY = 'XML_ENTITY'
+export const PRINTF_VARIABLES = 'PRINTF_VARIABLES'
+export const PRINTF_XSI_EXTENSION = 'PRINTF_XSI_EXTENSION'
 
 /* Parse values of known settings to appropriate types */
 function parseKnownSettings (settings) {
@@ -58,6 +59,9 @@ function parseKnownSettings (settings) {
 /* convenience function to construct an empty setting body */
 const newSetting = value => ({ value, saving: false, error: undefined })
 
+// Default validator value: one of ['Error','Warning','Off']
+export const defaultValidation = 'Off'
+
 export const defaultState = {
   // state for all settings being requested on app load
   fetching: false,
@@ -72,13 +76,13 @@ export const defaultState = {
     [SUGGESTIONS_DIFF]: newSetting(true),
     [KEY_SUGGESTIONS_VISIBLE]: newSetting(true),
     // Validator options disabled by default
-    [HTML_XML]: newSetting(false),
-    [NEW_LINE]: newSetting(false),
-    [TAB]: newSetting(false),
-    [JAVA_VARIABLES]: newSetting(false),
-    [XML_ENTITY]: newSetting(false),
-    [PRINTF_VARIABLES]: newSetting(false),
-    [PRINTF_XSI_EXTENSION]: newSetting(false)
+    [HTML_XML]: newSetting(defaultValidation),
+    [NEW_LINE]: newSetting(defaultValidation),
+    [TAB]: newSetting(defaultValidation),
+    [JAVA_VARIABLES]: newSetting(defaultValidation),
+    [XML_ENTITY]: newSetting(defaultValidation),
+    [PRINTF_VARIABLES]: newSetting(defaultValidation),
+    [PRINTF_XSI_EXTENSION]: newSetting(defaultValidation)
   }
 }
 
@@ -160,6 +164,18 @@ export default handleActions({
       }
     })
   },
+  [VALIDATORS_SUCCESS]: (state, { payload }) => {
+    const defined = keys(state.settings)
+    const parsed = parseKnownSettings(payload)
+    const updates = mapValues(pick(parsed, defined),
+      value => ({ value: {$set: value} }))
+    return update(state, {
+      fetching: {$set: false},
+      settings: {
+        ...updates
+      }
+    })
+  },
   [SETTINGS_FAILURE]: (state, { payload }) => update(state, {
     fetching: {$set: false},
     error: {$set: payload}