diff --git a/admin/kernel-masterdata-service/src/main/java/io/mosip/kernel/masterdata/dto/getresponse/extn/MachineExtnDto.java b/admin/kernel-masterdata-service/src/main/java/io/mosip/kernel/masterdata/dto/getresponse/extn/MachineExtnDto.java
index 043d900a79a..a93efb12022 100644
--- a/admin/kernel-masterdata-service/src/main/java/io/mosip/kernel/masterdata/dto/getresponse/extn/MachineExtnDto.java
+++ b/admin/kernel-masterdata-service/src/main/java/io/mosip/kernel/masterdata/dto/getresponse/extn/MachineExtnDto.java
@@ -3,12 +3,14 @@
 import java.time.LocalDateTime;
 
 import javax.validation.constraints.NotBlank;
+import javax.validation.constraints.NotNull;
 import javax.validation.constraints.Size;
 
 import com.fasterxml.jackson.annotation.JsonFormat;
 
 import io.mosip.kernel.masterdata.validator.FilterType;
 import io.mosip.kernel.masterdata.validator.FilterTypeEnum;
+import io.mosip.kernel.masterdata.validator.StringFormatter;
 import io.mosip.kernel.masterdata.validator.ValidLangCode;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
@@ -81,4 +83,12 @@ public class MachineExtnDto extends BaseDto {
 	 */
 	@JsonFormat(shape = JsonFormat.Shape.STRING, pattern = "yyyy-MM-dd'T'HH:mm:ss.SSS'Z'")
 	private LocalDateTime validityDateTime;
-}
+
+	@NotNull
+	@StringFormatter(min = 1, max = 36)
+	@ApiModelProperty(value = "zoneCode", required = true, dataType = "java.lang.String")
+	private String zoneCode;
+
+	@ApiModelProperty(value = "regCenterId",  dataType = "java.lang.String")
+	private String regCenterId;
+}
\ No newline at end of file