diff --git a/pom.xml b/pom.xml
index 4ae3399..36b657c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -8,7 +8,7 @@
 	<name>app-support-java</name>
 	<description>app-support-java</description>
 	<packaging>jar</packaging>
-	
+
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<java.version>17</java.version>
@@ -23,7 +23,7 @@
 	        </snapshots>
 		</repository>
 	</repositories>
-	
+
 	<pluginRepositories>
     	<pluginRepository>
 	        <id>maven-public</id>
@@ -36,8 +36,8 @@
 			</releases>
 	    </pluginRepository>
 	</pluginRepositories>
-	
-	
+
+
 	<dependencies>
 	    <dependency>
 			<groupId>cokr.xit.base</groupId>
@@ -49,11 +49,6 @@
 			<artifactId>xit-docs</artifactId>
 			<version>23.04.01-SNAPSHOT</version>
 		</dependency>
-		<dependency>
-			<groupId>cokr.xit.base</groupId>
-			<artifactId>xit-user</artifactId>
-			<version>23.04.01-SNAPSHOT</version>
-		</dependency>
 	</dependencies>
 
 
diff --git a/src/main/java/cokr/xit/applib/AppCmmnUtil.java b/src/main/java/cokr/xit/applib/AppCmmnUtil.java
new file mode 100644
index 0000000..ab2e62f
--- /dev/null
+++ b/src/main/java/cokr/xit/applib/AppCmmnUtil.java
@@ -0,0 +1,38 @@
+package cokr.xit.applib;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class AppCmmnUtil {
+
+	/**
+     * 문자열이 차량번호인지 체크한다.
+     * @param 문자열
+     * @return boolean
+     */
+	public static boolean isValidCarNumber(String carNum){
+		boolean returnValue = false;
+		try{
+			String regex = "^\\d{2,3}[가|나|다|라|마|거|너|더|러|머|버|서|어|저|고|노|도|로|모|보|소|오|조|구|누|두|루|무|부|수|우|주|바|사|아|자|허|배|호|하\\x20]\\d{4}/*$";
+
+			Pattern p = Pattern.compile(regex);
+			Matcher m = p.matcher(carNum);
+			if (m.matches()) {
+				returnValue = true;
+			}else{
+				//2번째 패턴 처리
+				regex = "^[서울|부산|대구|인천|대전|광주|울산|제주|경기|강원|충남|전남|전북|경남|경북|세종]{2}\\d{2}[가|나|다|라|마|거|너|더|러|머|버|서|어|저|고|노|도|로|모|보|소|오|조|구|누|두|루|무|부|수|우|주|바|사|아|자|허|배|호|하\\x20]\\d{4}$";
+				p = Pattern.compile(regex);
+				m = p.matcher(carNum);
+				if (m.matches()) {
+					returnValue = true;
+				}
+			}
+
+			return returnValue;
+
+		}catch(Exception e){
+			return false;
+		}
+	}
+}