diff --git a/NEWS.md b/NEWS.md
index 069118385..7169f3bfb 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,5 +1,6 @@
 ## 20.2.7 2024-06-26
 * [MODDATAIMP-1046](https://folio-org.atlassian.net/browse/MODDATAIMP-1046) Reorder only 00X fields while preserving system order for all other
+* [MODINV-1071](https://folio-org.atlassian.net/browse/MODINV-1071) Extend Authority with Additional fields
 
 ## 20.2.6 2024-05-29
 * [MODDATAIMP-1052](https://folio-org.atlassian.net/browse/MODDATAIMP-1052) Fix editing shared Instance via quickMARC from Member tenant
diff --git a/README.MD b/README.MD
index 71fa0e31b..3cca808c7 100644
--- a/README.MD
+++ b/README.MD
@@ -129,6 +129,19 @@ After setup, it is good to check logs in all related modules for errors.
   * DI_SRS_MARC_BIB_RECORD_MODIFIED_PARTITIONS
 Default value for all partitions is 1
 
+## Properties
+
+`AUTHORITY_EXTENDED` environment variable enables extended mapping for Authority to support advanced references classification in 5xx fields:
+* broader terms (`$wg` tag)
+* narrower terms (`$wh` tag)
+* earlier headings (`$wa` tag)
+* later headings (`$wb` tag)
+* saft*Trunc for every saft* field with "i" and numeric subfields excluded
+
+Default value for `AUTHORITY_EXTENDED` is `false`.
+The mapping itself is implemented in [data-import-processing-core](https://github.com/folio-org/data-import-processing-core).
+
+
 # Making Requests
 
 These modules provide HTTP based APIs rather than any UI themselves.
diff --git a/pom.xml b/pom.xml
index 7bac3c06e..b26ef60d3 100644
--- a/pom.xml
+++ b/pom.xml
@@ -321,7 +321,7 @@
     <liquibase.version>4.9.1</liquibase.version>
     <kafkaclients.version>3.1.0</kafkaclients.version>
     <junit.version>4.13.2</junit.version>
-    <data-import-processing-core.version>4.2.0</data-import-processing-core.version>
+    <data-import-processing-core.version>4.2.5-LOC-SNAPSHOT</data-import-processing-core.version>
   </properties>
 
   <distributionManagement>
diff --git a/src/main/java/org/folio/inventory/dataimport/handlers/actions/AbstractAuthorityEventHandler.java b/src/main/java/org/folio/inventory/dataimport/handlers/actions/AbstractAuthorityEventHandler.java
index ed807c71c..8fcbe808d 100644
--- a/src/main/java/org/folio/inventory/dataimport/handlers/actions/AbstractAuthorityEventHandler.java
+++ b/src/main/java/org/folio/inventory/dataimport/handlers/actions/AbstractAuthorityEventHandler.java
@@ -21,6 +21,7 @@
 import org.apache.logging.log4j.Logger;
 
 import org.folio.ActionProfile;
+import org.folio.ActionProfile.FolioRecord;
 import org.folio.Authority;
 import org.folio.DataImportEventPayload;
 import org.folio.MappingMetadataDto;
@@ -54,9 +55,11 @@ public abstract class AbstractAuthorityEventHandler implements EventHandler {
 
   private static final String RECORD_ID_HEADER = "recordId";
   private static final String CHUNK_ID_HEADER = "chunkId";
+  public static final String AUTHORITY_EXTENDED = "AUTHORITY_EXTENDED";
 
   private final Storage storage;
   private final MappingMetadataCache mappingMetadataCache;
+  public static boolean isAuthorityExtended = isAuthorityExtendedMode();
 
   protected AbstractAuthorityEventHandler(Storage storage, MappingMetadataCache mappingMetadataCache) {
     this.storage = storage;
@@ -161,7 +164,9 @@ private Future<Authority> mapAuthority(DataImportEventPayload payload, MappingMe
       var mappingParameters = Json.decodeValue(mappingMetadata.getMappingParams(), MappingParameters.class);
       var parsedRecord = new JsonObject((String) new JsonObject(payload.getContext().get(sourceRecordType().value()))
         .mapTo(Record.class).getParsedRecord().getContent());
-      RecordMapper<Authority> recordMapper = RecordMapperBuilder.buildMapper(sourceRecordType().value());
+      RecordMapper<Authority> recordMapper = isAuthorityExtended
+        ? RecordMapperBuilder.buildMapper(FolioRecord.MARC_AUTHORITY_EXTENDED.value())
+        : RecordMapperBuilder.buildMapper(sourceRecordType().value());
       var authority = recordMapper.mapRecord(parsedRecord, mappingParameters, mappingRules);
       authority.setSource(Authority.Source.MARC);
       return Future.succeededFuture(authority);
@@ -215,4 +220,21 @@ private String constructMetaInfoMsg(DataImportEventPayload payload) {
       getChunkIdHeader(payload)
     );
   }
+
+  private static boolean isAuthorityExtendedMode() {
+    return Boolean.parseBoolean(
+      System.getenv().getOrDefault(AUTHORITY_EXTENDED, "false"));
+  }
+
+  /**
+   * For test usage only.
+   *
+   * @param newIsAuthoritiesExtended New value for the env to set.
+   */
+  public static void setAuthorityExtendedMode(boolean newIsAuthoritiesExtended) {
+    isAuthorityExtended = newIsAuthoritiesExtended;
+  }
+   public static boolean getIsAuthorityExtended() {
+    return isAuthorityExtended;
+  }
 }
diff --git a/src/main/java/org/folio/inventory/dataimport/handlers/actions/AuthorityUpdateDelegate.java b/src/main/java/org/folio/inventory/dataimport/handlers/actions/AuthorityUpdateDelegate.java
index 418ad7083..1358ae93a 100644
--- a/src/main/java/org/folio/inventory/dataimport/handlers/actions/AuthorityUpdateDelegate.java
+++ b/src/main/java/org/folio/inventory/dataimport/handlers/actions/AuthorityUpdateDelegate.java
@@ -6,6 +6,7 @@
 import org.apache.http.HttpStatus;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
+import org.folio.ActionProfile.FolioRecord;
 import org.folio.Authority;
 import org.folio.inventory.common.Context;
 import org.folio.inventory.dataimport.exceptions.DataImportException;
@@ -21,6 +22,7 @@
 import java.util.Map;
 
 import static java.lang.String.format;
+import static org.folio.inventory.dataimport.handlers.actions.AbstractAuthorityEventHandler.getIsAuthorityExtended;
 import static org.folio.inventory.dataimport.util.LoggerUtil.logParametersUpdateDelegate;
 
 public class AuthorityUpdateDelegate {
@@ -48,7 +50,9 @@ public Future<Authority> handle(Map<String, String> eventPayload, Record marcRec
       JsonObject parsedRecord = retrieveParsedContent(marcRecord.getParsedRecord());
       String authorityId = marcRecord.getExternalIdsHolder().getAuthorityId();
       LOGGER.info("Authority update with authorityId: {}", authorityId);
-      RecordMapper<Authority> recordMapper = RecordMapperBuilder.buildMapper(MARC_FORMAT);
+      RecordMapper<Authority> recordMapper = getIsAuthorityExtended()
+        ? RecordMapperBuilder.buildMapper(FolioRecord.MARC_AUTHORITY_EXTENDED.value())
+        : RecordMapperBuilder.buildMapper(MARC_FORMAT);
       var mappedAuthority = recordMapper.mapRecord(parsedRecord, mappingParameters, mappingRules);
       AuthorityRecordCollection authorityRecordCollection = storage.getAuthorityRecordCollection(context);
 
diff --git a/src/test/java/org/folio/inventory/dataimport/handlers/actions/UpdateAuthorityEventHandlerTest.java b/src/test/java/org/folio/inventory/dataimport/handlers/actions/UpdateAuthorityEventHandlerTest.java
index 8a32d72c2..0a2f6b568 100644
--- a/src/test/java/org/folio/inventory/dataimport/handlers/actions/UpdateAuthorityEventHandlerTest.java
+++ b/src/test/java/org/folio/inventory/dataimport/handlers/actions/UpdateAuthorityEventHandlerTest.java
@@ -9,6 +9,8 @@
 import io.vertx.core.Vertx;
 import io.vertx.core.json.Json;
 import io.vertx.core.json.JsonObject;
+import java.util.Arrays;
+import java.util.Collection;
 import org.folio.ActionProfile;
 import org.folio.Authority;
 import org.folio.DataImportEventPayload;
@@ -28,9 +30,12 @@
 import org.folio.rest.jaxrs.model.ParsedRecord;
 import org.folio.rest.jaxrs.model.ProfileSnapshotWrapper;
 import org.folio.rest.jaxrs.model.Record;
+import org.junit.After;
 import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
 
@@ -70,11 +75,13 @@
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
+@RunWith(Parameterized.class)
 public class UpdateAuthorityEventHandlerTest {
 
   private static final String MAPPING_RULES_PATH = "src/test/resources/handlers/marc-authority-rules.json";
   private static final String PARSED_AUTHORITY_RECORD = "src/test/resources/marc/authority/parsed-authority-record.json";
   private static final String MAPPING_METADATA_URL = "/mapping-metadata";
+  private final boolean isAuthorityExtended;
 
   private final Vertx vertx = Vertx.vertx();
   @Rule
@@ -112,6 +119,15 @@ public class UpdateAuthorityEventHandlerTest {
 
   private UpdateAuthorityEventHandler eventHandler;
 
+  public UpdateAuthorityEventHandlerTest(boolean isAuthorityExtended) {
+    this.isAuthorityExtended = isAuthorityExtended;
+  }
+
+  @Parameterized.Parameters
+  public static Collection<Object[]> data() {
+    return Arrays.asList(new Object[][]{{true}, {false}});
+  }
+
   @Before
   public void setUp() throws IOException {
     MockitoAnnotations.openMocks(this);
@@ -130,6 +146,13 @@ public void setUp() throws IOException {
       .willReturn(WireMock.ok().withBody(Json.encode(new MappingMetadataDto()
         .withMappingParams(Json.encode(new MappingParameters()))
         .withMappingRules(mappingRules.encode())))));
+
+    AbstractAuthorityEventHandler.setAuthorityExtendedMode(isAuthorityExtended);
+  }
+
+  @After
+  public void tearDown() {
+    AbstractAuthorityEventHandler.setAuthorityExtendedMode(false);
   }
 
   @Test
diff --git a/src/test/java/org/folio/inventory/eventhandlers/UpdateAuthorityQuickMarcEventHandlerTest.java b/src/test/java/org/folio/inventory/eventhandlers/UpdateAuthorityQuickMarcEventHandlerTest.java
index 75c8e1a8b..d32446c2b 100644
--- a/src/test/java/org/folio/inventory/eventhandlers/UpdateAuthorityQuickMarcEventHandlerTest.java
+++ b/src/test/java/org/folio/inventory/eventhandlers/UpdateAuthorityQuickMarcEventHandlerTest.java
@@ -12,15 +12,19 @@
 
 import io.vertx.core.Future;
 import io.vertx.core.json.JsonObject;
+import junitparams.JUnitParamsRunner;
+import junitparams.Parameters;
 import org.folio.inventory.dataimport.exceptions.OptimisticLockingException;
+import org.folio.inventory.dataimport.handlers.actions.AbstractAuthorityEventHandler;
 import org.junit.Assert;
 import org.junit.Before;
+import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.mockito.ArgumentCaptor;
 import org.mockito.Mock;
 import org.mockito.Mockito;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.mockito.junit.MockitoJUnit;
 
 import org.folio.Authority;
 import org.folio.inventory.TestUtil;
@@ -31,8 +35,9 @@
 import org.folio.inventory.dataimport.handlers.quickmarc.UpdateAuthorityQuickMarcEventHandler;
 import org.folio.inventory.domain.AuthorityRecordCollection;
 import org.folio.inventory.storage.Storage;
+import org.mockito.junit.MockitoRule;
 
-@RunWith(MockitoJUnitRunner.class)
+@RunWith(JUnitParamsRunner.class)
 public class UpdateAuthorityQuickMarcEventHandlerTest {
 
   private static final String MAPPING_RULES_PATH = "src/test/resources/handlers/authority-rules.json";
@@ -54,6 +59,9 @@ public class UpdateAuthorityQuickMarcEventHandlerTest {
   private JsonObject record;
   private Authority existingAuthority;
 
+  @Rule
+  public MockitoRule mockitoRule = MockitoJUnit.rule();
+
   @Before
   public void setUp() throws IOException {
     existingAuthority = new JsonObject(TestUtil.readFileFromPath(AUTHORITY_PATH)).mapTo(Authority.class);
@@ -83,7 +91,9 @@ record = new JsonObject(TestUtil.readFileFromPath(RECORD_PATH));
   }
 
   @Test
-  public void shouldProcessEvent() {
+  @Parameters({"true", "false"})
+  public void shouldProcessEvent(String isAuthorityExtendedMode) {
+    AbstractAuthorityEventHandler.setAuthorityExtendedMode(Boolean.parseBoolean(isAuthorityExtendedMode));
     HashMap<String, String> eventPayload = new HashMap<>();
     eventPayload.put("RECORD_TYPE", "MARC_AUTHORITY");
     eventPayload.put("MARC_AUTHORITY", record.encode());
@@ -107,6 +117,7 @@ public void shouldProcessEvent() {
     Assert.assertEquals("token", argument.getValue().getToken());
     Assert.assertEquals("dummy", argument.getValue().getTenantId());
     Assert.assertEquals("http://localhost", argument.getValue().getOkapiLocation());
+    AbstractAuthorityEventHandler.setAuthorityExtendedMode(false);
   }
 
   @Test