diff --git a/weasis-dicom-tools/src/main/java/org/weasis/dicom/ref/AnatomicBuilder.java b/weasis-dicom-tools/src/main/java/org/weasis/dicom/ref/AnatomicBuilder.java
index 446260b..914b87b 100644
--- a/weasis-dicom-tools/src/main/java/org/weasis/dicom/ref/AnatomicBuilder.java
+++ b/weasis-dicom-tools/src/main/java/org/weasis/dicom/ref/AnatomicBuilder.java
@@ -23,7 +23,7 @@ public class AnatomicBuilder {
   public interface CategoryBuilder {
     String getContextUID();
 
-    String getTIdentifier();
+    String getIdentifier();
 
     String getTitle();
   }
@@ -48,7 +48,7 @@ public String getContextUID() {
       return ContextUID;
     }
 
-    public String getTIdentifier() {
+    public String getIdentifier() {
       return identifier;
     }
 
@@ -98,7 +98,7 @@ public String getContextUID() {
     }
 
     @Override
-    public String getTIdentifier() {
+    public String getIdentifier() {
       return identifier;
     }
 
diff --git a/weasis-dicom-tools/src/main/java/org/weasis/dicom/ref/AnatomicRegion.java b/weasis-dicom-tools/src/main/java/org/weasis/dicom/ref/AnatomicRegion.java
index ac699b5..61804a2 100644
--- a/weasis-dicom-tools/src/main/java/org/weasis/dicom/ref/AnatomicRegion.java
+++ b/weasis-dicom-tools/src/main/java/org/weasis/dicom/ref/AnatomicRegion.java
@@ -119,7 +119,7 @@ public static void write(Attributes dcm, AnatomicRegion region) {
   private static void writeRegionContext(Code code, CategoryBuilder category) {
     if (category != null) {
       code.setContextUID(category.getContextUID());
-      code.setContextIdentifier(category.getTIdentifier());
+      code.setContextIdentifier(category.getIdentifier());
     }
   }
 
diff --git a/weasis-dicom-tools/src/test/java/org/dcm4che3/img/util/DateTimeUtilsTest.java b/weasis-dicom-tools/src/test/java/org/dcm4che3/img/util/DateTimeUtilsTest.java
index 3c4ead7..0720fe4 100644
--- a/weasis-dicom-tools/src/test/java/org/dcm4che3/img/util/DateTimeUtilsTest.java
+++ b/weasis-dicom-tools/src/test/java/org/dcm4che3/img/util/DateTimeUtilsTest.java
@@ -24,6 +24,7 @@
 import java.util.TimeZone;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
+import org.junitpioneer.jupiter.DefaultTimeZone;
 
 class DateTimeUtilsTest {
   @Test
@@ -60,6 +61,7 @@ void testGetDicomTime() {
 
   @Test
   @DisplayName("Convert Date to LocalDate")
+  @DefaultTimeZone("UTC")
   void testGetDateToLocalDate() {
     assertNull(DateTimeUtils.toLocalDate(null));
 
@@ -75,6 +77,7 @@ void testGetDateToLocalDate() {
 
   @Test
   @DisplayName("Convert Date to LocalTime")
+  @DefaultTimeZone("UTC")
   void testGetDateToLocalTime() {
     assertNull(DateTimeUtils.toLocalTime(null));
 
@@ -90,6 +93,7 @@ void testGetDateToLocalTime() {
 
   @Test
   @DisplayName("Convert date to LocalDateTime")
+  @DefaultTimeZone("UTC")
   void testGetDateToLocalDateTime() {
     assertNull(DateTimeUtils.toLocalDateTime(null));
 
@@ -105,6 +109,7 @@ void testGetDateToLocalDateTime() {
 
   @Test
   @DisplayName("Get DateTime")
+  @DefaultTimeZone("UTC")
   void testGetDateTime() {
     assertNull(DateTimeUtils.dateTime((LocalDate) null, null));
 
diff --git a/weasis-dicom-tools/src/test/java/org/dcm4che3/img/util/DicomUtilsTest.java b/weasis-dicom-tools/src/test/java/org/dcm4che3/img/util/DicomUtilsTest.java
index ff8a1a5..e574623 100644
--- a/weasis-dicom-tools/src/test/java/org/dcm4che3/img/util/DicomUtilsTest.java
+++ b/weasis-dicom-tools/src/test/java/org/dcm4che3/img/util/DicomUtilsTest.java
@@ -29,24 +29,14 @@
 import org.dcm4che3.data.Attributes;
 import org.dcm4che3.data.Tag;
 import org.dcm4che3.data.VR;
-import org.junit.jupiter.api.AfterAll;
 import org.junit.jupiter.api.Assertions;
-import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
+import org.junitpioneer.jupiter.DefaultLocale;
+import org.junitpioneer.jupiter.DefaultTimeZone;
 
+@DefaultLocale(language = "en", country = "US")
 class DicomUtilsTest {
-  static final Locale defaultLocale = Locale.getDefault();
-
-  @BeforeAll
-  static void setUp() {
-    Locale.setDefault(Locale.US); // Force Locale for testing date format
-  }
-
-  @AfterAll
-  static void tearDown() {
-    Locale.setDefault(defaultLocale);
-  }
 
   @Test
   @DisplayName("Get Period with different dates")
@@ -254,6 +244,7 @@ void testGetStringArrayFromDicomElement() {
 
   @Test
   @DisplayName("Get Date from Dicom Element")
+  @DefaultTimeZone("Europe/Paris")
   void testGetDateFromDicomElement() {
     TimeZone timeZone = TimeZone.getDefault();
     Attributes attributes = new Attributes();
@@ -277,6 +268,7 @@ void testGetDateFromDicomElement() {
 
   @Test
   @DisplayName("Get date array from Dicom Element with default value")
+  @DefaultTimeZone("Europe/Paris")
   void testGetDatesFromDicomElement() {
     TimeZone timeZone = TimeZone.getDefault();
     Attributes dicom = new Attributes();
diff --git a/weasis-dicom-tools/src/test/java/org/weasis/dicom/ref/AnatomicBuilderTest.java b/weasis-dicom-tools/src/test/java/org/weasis/dicom/ref/AnatomicBuilderTest.java
index 82dc0e1..eb51cc6 100644
--- a/weasis-dicom-tools/src/test/java/org/weasis/dicom/ref/AnatomicBuilderTest.java
+++ b/weasis-dicom-tools/src/test/java/org/weasis/dicom/ref/AnatomicBuilderTest.java
@@ -15,25 +15,13 @@
 import static org.junit.jupiter.api.Assertions.assertNull;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 
-import java.util.Locale;
 import java.util.Objects;
-import org.junit.jupiter.api.AfterAll;
-import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Test;
+import org.junitpioneer.jupiter.DefaultLocale;
 import org.weasis.dicom.ref.AnatomicBuilder.Category;
 
+@DefaultLocale(language = "en", country = "US")
 class AnatomicBuilderTest {
-  static final Locale defaultLocale = Locale.getDefault();
-
-  @BeforeAll
-  static void setUp() {
-    Locale.setDefault(Locale.FRENCH); // Force Locale for testing date format
-  }
-
-  @AfterAll
-  static void tearDown() {
-    Locale.setDefault(defaultLocale);
-  }
 
   @Test
   void getAllBodyParts_returnsAllBodyParts() {
@@ -56,8 +44,8 @@ void getBodyPartFromCode() {
         BodyPart.values()[0], BodyPart.getBodyPartFromCode(BodyPart.values()[0].getCodeValue()));
 
     BodyPart bodyPart = BodyPart.getBodyPartFromCode("128559007");
-    assertEquals("Artère géniculaire", bodyPart.getCodeMeaning());
-    assertEquals("Artère géniculaire", bodyPart.toString());
+    assertEquals("Genicular artery", bodyPart.getCodeMeaning());
+    assertEquals("Genicular artery", bodyPart.toString());
     assertEquals(CodingScheme.SCT, bodyPart.getCodingScheme());
     assertTrue(bodyPart.isPaired());
     assertFalse(bodyPart.isCommon());
@@ -74,7 +62,7 @@ void getBodyPartFromLegacyCode() {
         AnatomicBuilder.getBodyPartFromLegacyCode(BodyPart.values()[0].getLegacyCode()));
     BodyPart bodyPart = AnatomicBuilder.getBodyPartFromLegacyCode("PANCREATICDUCT");
     assertNotNull(bodyPart);
-    assertEquals("Canal pancréatique", bodyPart.toString());
+    assertEquals("Pancreatic duct", bodyPart.toString());
     assertEquals(CodingScheme.SCT, bodyPart.getCodingScheme());
     assertFalse(bodyPart.isPaired());
     assertTrue(bodyPart.isCommon());
@@ -110,7 +98,7 @@ void getAnatomicModifierFromCode() {
 
     AnatomicModifier modifier = AnatomicModifier.getAnatomicModifierFromCode("49370004");
     assertNotNull(modifier);
-    assertEquals("Latéral", modifier.toString());
+    assertEquals("Lateral", modifier.toString());
     assertEquals(CodingScheme.SCT, modifier.getCodingScheme());
 
     String key = "nonExistentKey";
@@ -125,7 +113,7 @@ void getSurfacePartFromCode() {
 
     SurfacePart surfacePart = SurfacePart.getSurfacePartFromCode("130319");
     assertNotNull(surfacePart);
-    assertEquals("Peau de l'hélix postérieur supérieur de l'oreille", surfacePart.toString());
+    assertEquals("Skin of superior posterior helix of ear", surfacePart.toString());
     assertEquals(CodingScheme.DCM, surfacePart.getCodingScheme());
     assertTrue(surfacePart.isPaired());
     assertNull(surfacePart.getLegacyCode());
@@ -157,7 +145,7 @@ void getCodingScheme() {
 
   @Test
   void category() {
-    assertEquals("Sites anatomiques dermatologiques", Category.SURFACE.toString());
+    assertEquals("Dermatology Anatomic Site", Category.SURFACE.toString());
 
     String key = "nonExistentKey";
     assertEquals('!' + key + '!', MesCategory.getString(key));
diff --git a/weasis-dicom-tools/src/test/java/org/weasis/dicom/ref/AnatomicRegionTest.java b/weasis-dicom-tools/src/test/java/org/weasis/dicom/ref/AnatomicRegionTest.java
index 72ccce1..6a2c4c4 100644
--- a/weasis-dicom-tools/src/test/java/org/weasis/dicom/ref/AnatomicRegionTest.java
+++ b/weasis-dicom-tools/src/test/java/org/weasis/dicom/ref/AnatomicRegionTest.java
@@ -20,9 +20,11 @@
 import org.dcm4che3.data.Tag;
 import org.dcm4che3.data.VR;
 import org.junit.jupiter.api.Test;
+import org.junitpioneer.jupiter.DefaultLocale;
 import org.weasis.dicom.ref.AnatomicBuilder.Category;
 import org.weasis.dicom.ref.AnatomicBuilder.OtherCategory;
 
+@DefaultLocale(language = "en", country = "US")
 class AnatomicRegionTest {
 
   @Test