diff --git a/src/main/java/eu/dnetlib/dhp/schema/oaf/EoscIfGuidelines.java b/src/main/java/eu/dnetlib/dhp/schema/oaf/EoscIfGuidelines.java
new file mode 100644
index 0000000..1040a79
--- /dev/null
+++ b/src/main/java/eu/dnetlib/dhp/schema/oaf/EoscIfGuidelines.java
@@ -0,0 +1,96 @@
+package eu.dnetlib.dhp.schema.oaf;
+
+import java.io.Serializable;
+import java.util.Optional;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+import org.apache.commons.lang3.StringUtils;
+
+/**
+ * Describes a reference to the EOSC Interoperability Framework (IF) Guidelines
+ */
+public class EoscIfGuidelines implements Serializable {
+
+    /**
+     * EOSC-IF code
+     */
+    private String code;
+
+    /**
+     * EOSC-IF label
+     */
+    private String label;
+
+    /**
+     * EOSC-IF url
+     */
+    private String url;
+
+    /**
+     * EOSC-IF semantic relation
+     */
+    private String semanticRelation;
+
+    public String getCode() {
+        return code;
+    }
+
+    public void setCode(String code) {
+        this.code = code;
+    }
+
+    public String getLabel() {
+        return label;
+    }
+
+    public void setLabel(String label) {
+        this.label = label;
+    }
+
+    public String getUrl() {
+        return url;
+    }
+
+    public void setUrl(String url) {
+        this.url = url;
+    }
+
+    public String getSemanticRelation() {
+        return semanticRelation;
+    }
+
+    public void setSemanticRelation(String semanticRelation) {
+        this.semanticRelation = semanticRelation;
+    }
+
+    private String toComparableString() {
+        return Stream
+                .of(
+                        Optional.ofNullable(getCode()).orElse(""),
+                        Optional.ofNullable(getLabel()).orElse(""),
+                        Optional.ofNullable(getUrl()).orElse(""),
+                        Optional.ofNullable(getSemanticRelation()).orElse(""))
+                .filter(StringUtils::isNotBlank)
+                .collect(Collectors.joining("||"));
+    }
+
+    @Override
+    public int hashCode() {
+        return toComparableString().hashCode();
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj)
+            return true;
+        if (obj == null)
+            return false;
+        if (getClass() != obj.getClass())
+            return false;
+
+        EoscIfGuidelines other = (EoscIfGuidelines) obj;
+
+        return toComparableString().equals(other.toComparableString());
+    }
+}
diff --git a/src/main/java/eu/dnetlib/dhp/schema/oaf/OafEntity.java b/src/main/java/eu/dnetlib/dhp/schema/oaf/OafEntity.java
index 0411821..4dd3caa 100644
--- a/src/main/java/eu/dnetlib/dhp/schema/oaf/OafEntity.java
+++ b/src/main/java/eu/dnetlib/dhp/schema/oaf/OafEntity.java
@@ -21,6 +21,8 @@ public abstract class OafEntity extends Oaf implements Serializable {
 
 	private OAIProvenance oaiprovenance;
 
+	private List<EoscIfGuidelines> eoscifguidelines;
+
 	public String getId() {
 		return id;
 	}
@@ -77,6 +79,14 @@ public abstract class OafEntity extends Oaf implements Serializable {
 		this.oaiprovenance = oaiprovenance;
 	}
 
+	public List<EoscIfGuidelines> getEoscifguidelines() {
+		return eoscifguidelines;
+	}
+
+	public void setEoscifguidelines(List<EoscIfGuidelines> eoscifguidelines) {
+		this.eoscifguidelines = eoscifguidelines;
+	}
+
 	public void mergeFrom(OafEntity e) {
 		super.mergeFrom(e);
 
@@ -84,6 +94,8 @@ public abstract class OafEntity extends Oaf implements Serializable {
 
 		pid = mergeLists(pid, e.getPid());
 
+		eoscifguidelines = mergeLists(eoscifguidelines, e.getEoscifguidelines());
+
 		if (e.getDateofcollection() != null && compareTrust(this, e) < 0)
 			dateofcollection = e.getDateofcollection();
 
diff --git a/src/test/java/eu/dnetlib/dhp/schema/oaf/MergeTest.java b/src/test/java/eu/dnetlib/dhp/schema/oaf/MergeTest.java
index 1c66b11..db09974 100644
--- a/src/test/java/eu/dnetlib/dhp/schema/oaf/MergeTest.java
+++ b/src/test/java/eu/dnetlib/dhp/schema/oaf/MergeTest.java
@@ -17,6 +17,7 @@ import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 
 import com.fasterxml.jackson.databind.ObjectMapper;
+import com.google.common.collect.Lists;
 
 /**
  * The type Merge test.
@@ -451,6 +452,61 @@ class MergeTest {
 		assertEquals(3, a.getSubject().size());
 	}
 
+	/**
+	 * Merge publication EoscIfGuidelines test.
+	 */
+	@Test
+	void mergePublicationEoscIfGuidelinesTest() {
+
+		Publication a = publication();
+		Publication b = publication();
+
+		a.setEoscifguidelines(Lists.newArrayList(eoscifg("a", "label a", "https://aaa.aa", "semRelA")));
+		b.setEoscifguidelines(Lists.newArrayList(eoscifg("a", "label a", "https://aaa.aa", "semRelA")));
+
+		a.mergeFrom(b);
+
+		assertNotNull(a.getEoscifguidelines());
+		assertEquals(1, a.getEoscifguidelines().size());
+
+		a.getEoscifguidelines().clear();
+		b.getEoscifguidelines().clear();
+
+		a.setEoscifguidelines(Lists.newArrayList(eoscifg("a", "label a", "https://aaa.aa", "semRelA")));
+		b.setEoscifguidelines(Lists.newArrayList(eoscifg("a", "label a", "https://aaa.aa", "semRelA")));
+
+		b.mergeFrom(a);
+
+		assertNotNull(a.getEoscifguidelines());
+		assertEquals(1, a.getEoscifguidelines().size());
+
+		EoscIfGuidelines e = b.getEoscifguidelines().get(0);
+		assertEquals("a", e.getCode());
+		assertEquals("label a", e.getLabel());
+		assertEquals("https://aaa.aa", e.getUrl());
+		assertEquals("semRelA", e.getSemanticRelation());
+
+		a.getEoscifguidelines().clear();
+		b.getEoscifguidelines().clear();
+
+		a.setEoscifguidelines(Lists.newArrayList(eoscifg("a", "label a", "https://aaa.aa", "semRelA")));
+		b.setEoscifguidelines(Lists.newArrayList(eoscifg("b", "label b", "https://bbb.bb", "semRelB")));
+
+		a.mergeFrom(b);
+
+		assertNotNull(a.getEoscifguidelines());
+		assertEquals(2, a.getEoscifguidelines().size());
+	}
+
+	private EoscIfGuidelines eoscifg(String code, String label, String url, String semrel) {
+		EoscIfGuidelines e = new EoscIfGuidelines();
+		e.setCode(code);
+		e.setLabel(label);
+		e.setUrl(url);
+		e.setSemanticRelation(semrel);
+		return e;
+	}
+
 	/**
 	 * Merge relation test.
 	 */