diff --git a/frontend/src/params/application.ts b/frontend/src/params/application.ts
index ac165f7..80057d8 100644
--- a/frontend/src/params/application.ts
+++ b/frontend/src/params/application.ts
@@ -1,6 +1,8 @@
 import type { ParamMatcher } from '@sveltejs/kit';
 
 export const match: ParamMatcher = (param) => {
-	//TODO: Application regex
-	return /^\d+$/.test(param);
+	const isNumber = /^\d{6}(?:\d{1})?$/.test(param);
+	const isValid = param.startsWith('101') || param.startsWith('102') || param.startsWith('103');
+	
+	return isNumber && isValid;
 };