diff --git a/libpldm/platform.c b/libpldm/platform.c
index 43025ae..9e16ed2 100644
--- a/libpldm/platform.c
+++ b/libpldm/platform.c
@@ -1026,6 +1026,68 @@
 	return PLDM_SUCCESS;
 }
 
+int encode_pldm_pdr_repository_chg_event_data(
+    uint8_t event_data_format, uint8_t number_of_change_records,
+    const uint8_t *event_data_operations,
+    const uint8_t *numbers_of_change_entries,
+    const uint32_t *const *change_entries,
+    struct pldm_pdr_repository_chg_event_data *event_data,
+    size_t *actual_change_records_size, size_t max_change_records_size)
+{
+	if (event_data_operations == NULL ||
+	    numbers_of_change_entries == NULL || change_entries == NULL) {
+		return PLDM_ERROR_INVALID_DATA;
+	}
+
+	size_t expected_size =
+	    sizeof(event_data_format) + sizeof(number_of_change_records);
+
+	expected_size +=
+	    sizeof(*event_data_operations) * number_of_change_records;
+	expected_size +=
+	    sizeof(*numbers_of_change_entries) * number_of_change_records;
+
+	for (uint8_t i = 0; i < number_of_change_records; ++i) {
+		expected_size +=
+		    sizeof(*change_entries[0]) * numbers_of_change_entries[i];
+	}
+
+	*actual_change_records_size = expected_size;
+
+	if (event_data == NULL) {
+		return PLDM_SUCCESS;
+	}
+
+	if (max_change_records_size < expected_size) {
+		return PLDM_ERROR_INVALID_LENGTH;
+	}
+
+	event_data->event_data_format = event_data_format;
+	event_data->number_of_change_records = number_of_change_records;
+
+	struct pldm_pdr_repository_change_record_data *record_data =
+	    (struct pldm_pdr_repository_change_record_data *)
+		event_data->change_records;
+
+	for (uint8_t i = 0; i < number_of_change_records; ++i) {
+		record_data->event_data_operation = event_data_operations[i];
+		record_data->number_of_change_entries =
+		    numbers_of_change_entries[i];
+
+		for (uint8_t j = 0; j < record_data->number_of_change_entries;
+		     ++j) {
+			record_data->change_entry[j] =
+			    htole32(change_entries[i][j]);
+		}
+
+		record_data = (struct pldm_pdr_repository_change_record_data
+				   *)(record_data->change_entry +
+				      record_data->number_of_change_entries);
+	}
+
+	return PLDM_SUCCESS;
+}
+
 int decode_pldm_pdr_repository_chg_event_data(const uint8_t *event_data,
 					      size_t event_data_size,
 					      uint8_t *event_data_format,
diff --git a/libpldm/platform.h b/libpldm/platform.h
index 3fc8ab3..696857d 100644
--- a/libpldm/platform.h
+++ b/libpldm/platform.h
@@ -1122,6 +1122,45 @@
     uint8_t *event_data_format, uint8_t *number_of_change_records,
     size_t *change_record_data_offset);
 
+/** @brief Encode PLDM PDR Repository Change eventData
+ *  @param[in] event_data_format - Format of this event data (e.g.
+ * FORMAT_IS_PDR_HANDLES)
+ *  @param[in] number_of_change_records - Number of changeRecords in this
+ * eventData
+ *  @param[in] event_data_operations - Array of eventDataOperations
+ *      (e.g. RECORDS_ADDED) for each changeRecord in this eventData. This array
+ * should contain number_of_change_records elements.
+ *  @param[in] numbers_of_change_entries - Array of numbers of changeEntrys
+ *      for each changeRecord in this eventData. This array should contain
+ *      number_of_change_records elements.
+ *  @param[in] change_entries - 2-dimensional array of arrays of changeEntrys,
+ *      one array per changeRecord in this eventData. The toplevel array should
+ *      contain number_of_change_records elements. Each subarray [i] should
+ *      contain numbers_of_change_entries[i] elements.
+ *  @param[in] event_data - The eventData will be encoded into this. This entire
+ *      structure must be max_change_records_size long. It must be large enough
+ *      to accomodate the data to be encoded. The caller is responsible for
+ *      allocating and deallocating it, including the variable-size
+ *      'event_data.change_records' field. If this parameter is NULL,
+ *      PLDM_SUCCESS will be returned and actual_change_records_size will be set
+ *      to reflect the required size of the structure.
+ *  @param[out] actual_change_records_size - The actual number of meaningful
+ *      encoded bytes in event_data. The caller can over-allocate memory and use
+ *      this output to determine the real size of the structure.
+ *  @param[in] max_change_records_size - The size of event_data in bytes. If the
+ *      encoded message would be larger than this value, an error is returned.
+ *  @return pldm_completion_codes
+ *  @note  Caller is responsible for memory alloc and dealloc of param
+ * 'event_data.change_records'
+ */
+int encode_pldm_pdr_repository_chg_event_data(
+    uint8_t event_data_format, uint8_t number_of_change_records,
+    const uint8_t *event_data_operations,
+    const uint8_t *numbers_of_change_entries,
+    const uint32_t *const *change_entries,
+    struct pldm_pdr_repository_chg_event_data *event_data,
+    size_t *actual_change_records_size, size_t max_change_records_size);
+
 /** @brief Decode PldmPDRRepositoryChangeRecord response data
  *
  *  @param[in] change_record_data - changeRecordData for