diff --git a/.gitignore b/.gitignore
index fa60b13..dc842b4 100755
--- a/.gitignore
+++ b/.gitignore
@@ -10,3 +10,7 @@ target/
 
 #Ignore vscode AI rules
 .github/copilot-instructions.md
+
+
+#Ignore vscode AI rules
+.github/instructions/codacy.instructions.md
diff --git a/addons/description/description.json b/addons/description/description.json
index e55c61a..be7574f 100644
--- a/addons/description/description.json
+++ b/addons/description/description.json
@@ -4,66 +4,6 @@
 		"title" : "Locate for threadsafety issues",
 		"timeToFix" : 5
 	},
-	{
-		"patternId" : "cert-EXP05-C",
-		"title" : "Do not attempt to cast away const",
-		"timeToFix" : 5
-	},
-	{
-		"patternId" : "cert-EXP42-C",
-		"title" : "Do not compare padding data",
-		"timeToFix" : 5
-	},
-	{
-		"patternId" : "cert-EXP15-C",
-		"title" : "Do not place a semicolon on the same line as an if, for or while statement",
-		"timeToFix" : 5
-	},
-	{
-		"patternId" : "cert-EXP46-c",
-		"title" : "Do not use a bitwise operator with a Boolean-like operand",
-		"timeToFix" : 5
-	},
-	{
-		"patternId" : "cert-INT31-c",
-		"title" : "Ensure that integer conversions do not result in lost or misinterpreted data",
-		"timeToFix" : 5
-	},
-	{
-		"patternId" : "cert-MSC24-C",
-		"title" : "Do not use deprecated or obsolescent functions",
-		"timeToFix" : 5
-	},
-	{
-		"patternId" : "cert-MSC30-c",
-		"title" : "Do not use the rand() function for generating pseudorandom numbers",
-		"timeToFix" : 5
-	},
-	{
-		"patternId" : "cert-STR03-C",
-		"title" : "Do not inadvertently truncate a string",
-		"timeToFix" : 5
-	},
-	{
-		"patternId" : "cert-STR05-C",
-		"title" : "Use pointers to const when referring to string literals",
-		"timeToFix" : 5
-	},
-	{
-		"patternId" : "cert-STR07-C",
-		"title" : "Use the bounds-checking interfaces for string manipulation",
-		"timeToFix" : 5
-	},
-	{
-		"patternId" : "cert-STR11-C",
-		"title" : "Do not specify the bound of a character array initialized with a string literal",
-		"timeToFix" : 5
-	},
-	{
-		"patternId" : "cert-API01-C",
-		"title" : "Avoid laying out strings in memory directly before sensitive data",
-		"timeToFix" : 5
-	},
 	{
 		"patternId" : "y2038-type-bits-not-64",
 		"title" : "_TIME_BITS must be defined equal to 64",
diff --git a/addons/patterns.json b/addons/patterns.json
index 53e42e4..aacf294 100644
--- a/addons/patterns.json
+++ b/addons/patterns.json
@@ -5,68 +5,6 @@
       "level" : "Warning",
       "category" : "ErrorProne"
     },
-    {
-      "patternId" : "cert-EXP05-C",
-      "level" : "Warning",
-      "category" : "ErrorProne"
-    },
-    {
-      "patternId" : "cert-EXP42-C",
-      "level" : "Warning",
-      "category" : "ErrorProne"
-    },
-    {
-      "patternId" : "cert-EXP15-C",
-      "level" : "Info",
-      "category" : "CodeStyle"
-    },
-    {
-      "patternId" : "cert-EXP46-c",
-      "level" : "Warning",
-      "category" : "CodeStyle"
-    },
-    {
-      "patternId" : "cert-INT31-c",
-      "level" : "Warning",
-      "category" : "ErrorProne"
-    },
-    {
-      "patternId" : "cert-MSC24-C",
-      "level" : "Warning",
-      "category" : "ErrorProne"
-    },
-    {
-      "patternId" : "cert-MSC30-c",
-      "level" : "Warning",
-      "category" : "ErrorProne"
-    },
-    {
-      "patternId" : "cert-STR03-C",
-      "level" : "Warning",
-      "category" : "ErrorProne"
-    },
-    {
-      "patternId" : "cert-STR05-C",
-      "level" : "Warning",
-      "category" : "ErrorProne"
-    },
-    {
-      "patternId" : "cert-STR07-C",
-      "level" : "Warning",
-      "category" : "Security",
-      "subCategory" : "InsecureModulesLibraries"
-    },
-    {
-      "patternId" : "cert-STR11-C",
-      "level" : "Warning",
-      "category" : "ErrorProne"
-    },
-    {
-      "patternId" : "cert-API01-C",
-      "level" : "Warning",
-      "category" : "Security",
-      "subCategory" : "UnexpectedBehaviour"
-    },
     {
       "patternId" : "y2038-type-bits-not-64",
       "level" : "Error",
diff --git a/docs/description/description.json b/docs/description/description.json
index af73f87..46b4bd1 100644
--- a/docs/description/description.json
+++ b/docs/description/description.json
@@ -1612,54 +1612,6 @@
   "patternId" : "threadsafety-threadsafety",
   "title" : "Locate for threadsafety issues",
   "timeToFix" : 5
-}, {
-  "patternId" : "cert-EXP05-C",
-  "title" : "Do not attempt to cast away const",
-  "timeToFix" : 5
-}, {
-  "patternId" : "cert-EXP42-C",
-  "title" : "Do not compare padding data",
-  "timeToFix" : 5
-}, {
-  "patternId" : "cert-EXP15-C",
-  "title" : "Do not place a semicolon on the same line as an if, for or while statement",
-  "timeToFix" : 5
-}, {
-  "patternId" : "cert-EXP46-c",
-  "title" : "Do not use a bitwise operator with a Boolean-like operand",
-  "timeToFix" : 5
-}, {
-  "patternId" : "cert-INT31-c",
-  "title" : "Ensure that integer conversions do not result in lost or misinterpreted data",
-  "timeToFix" : 5
-}, {
-  "patternId" : "cert-MSC24-C",
-  "title" : "Do not use deprecated or obsolescent functions",
-  "timeToFix" : 5
-}, {
-  "patternId" : "cert-MSC30-c",
-  "title" : "Do not use the rand() function for generating pseudorandom numbers",
-  "timeToFix" : 5
-}, {
-  "patternId" : "cert-STR03-C",
-  "title" : "Do not inadvertently truncate a string",
-  "timeToFix" : 5
-}, {
-  "patternId" : "cert-STR05-C",
-  "title" : "Use pointers to const when referring to string literals",
-  "timeToFix" : 5
-}, {
-  "patternId" : "cert-STR07-C",
-  "title" : "Use the bounds-checking interfaces for string manipulation",
-  "timeToFix" : 5
-}, {
-  "patternId" : "cert-STR11-C",
-  "title" : "Do not specify the bound of a character array initialized with a string literal",
-  "timeToFix" : 5
-}, {
-  "patternId" : "cert-API01-C",
-  "title" : "Avoid laying out strings in memory directly before sensitive data",
-  "timeToFix" : 5
 }, {
   "patternId" : "y2038-type-bits-not-64",
   "title" : "_TIME_BITS must be defined equal to 64",
diff --git a/docs/multiple-tests/without-config-file/patterns.xml b/docs/multiple-tests/without-config-file/patterns.xml
index 89ce706..4579fa7 100644
--- a/docs/multiple-tests/without-config-file/patterns.xml
+++ b/docs/multiple-tests/without-config-file/patterns.xml
@@ -1,5 +1,16 @@
 <module name="root">
     <module name="unreadVariable" />
-    <module name="invalidIterator1" />
     <module name="unusedLabel" />
+    <module name="invalidIterator1" />
+    <module name="nullPointer" />
+    <module name="nullPointerDefaultArg" />
+    <module name="nullPointerRedundantCheck" />
+    <module name="nullPointerOutOfMemory" />
+    <module name="nullPointerOutOfResources" />
+    <module name="nullPointerArithmetic" />
+    <module name="nullPointerArithmeticRedundantCheck" />
+    <module name="threadsafety-threadsafety" />
+    <module name="y2038-type-bits-not-64" />
+    <module name="y2038-type-bits-undef" />
+    <module name="y2038-unsafe-call" />
 </module>
diff --git a/docs/multiple-tests/without-config-file/results.xml b/docs/multiple-tests/without-config-file/results.xml
index 4be2e03..4af31f6 100644
--- a/docs/multiple-tests/without-config-file/results.xml
+++ b/docs/multiple-tests/without-config-file/results.xml
@@ -8,4 +8,9 @@
     <file name="unusedLabel.cpp">
         <error source="unusedLabel" line="8" message="Label 'Test2' is not used." severity="info" />
     </file>
+    <file name="test.cpp">
+        <error source="nullPointer" line="9" message="Null pointer dereference: ptr" severity="error" />  
+        <error source="nullPointer" line="11" message="Null pointer dereference: ptr" severity="error" />  
+        <error source="nullPointerRedundantCheck" line="16" message="Either the condition 'x==nullptr' is redundant or there is possible null pointer dereference: x." severity="warning" />
+    </file>
 </checkstyle>
diff --git a/docs/multiple-tests/without-config-file/src/test.cpp b/docs/multiple-tests/without-config-file/src/test.cpp
new file mode 100644
index 0000000..135c481
--- /dev/null
+++ b/docs/multiple-tests/without-config-file/src/test.cpp
@@ -0,0 +1,30 @@
+#include <iostream>
+
+void causeNullPointerError() {
+    int* ptr = nullptr; // 1. Pointer is explicitly set to NULL
+    
+    // ... some other logic ...
+
+    // 2. ERROR: Dereferencing the null pointer
+    *ptr = 42; 
+    
+    std::cout << "Value: " << *ptr << std::endl;
+}
+
+void checkAfterDereference(int* x) {
+    // 3. ERROR: Dereferencing 'x' before checking if it is null
+    *x = 10; 
+    
+    if (x == nullptr) {
+        return;
+    }
+}
+
+int main() {
+    causeNullPointerError();
+    
+    int* val = nullptr;
+    checkAfterDereference(val);
+
+    return 0;
+}
\ No newline at end of file
diff --git a/docs/patterns.json b/docs/patterns.json
index fc5bc1e..8f8f233 100644
--- a/docs/patterns.json
+++ b/docs/patterns.json
@@ -1615,56 +1615,6 @@
     "patternId" : "threadsafety-threadsafety",
     "level" : "Warning",
     "category" : "ErrorProne"
-  }, {
-    "patternId" : "cert-EXP05-C",
-    "level" : "Warning",
-    "category" : "ErrorProne"
-  }, {
-    "patternId" : "cert-EXP42-C",
-    "level" : "Warning",
-    "category" : "ErrorProne"
-  }, {
-    "patternId" : "cert-EXP15-C",
-    "level" : "Info",
-    "category" : "CodeStyle"
-  }, {
-    "patternId" : "cert-EXP46-c",
-    "level" : "Warning",
-    "category" : "CodeStyle"
-  }, {
-    "patternId" : "cert-INT31-c",
-    "level" : "Warning",
-    "category" : "ErrorProne"
-  }, {
-    "patternId" : "cert-MSC24-C",
-    "level" : "Warning",
-    "category" : "ErrorProne"
-  }, {
-    "patternId" : "cert-MSC30-c",
-    "level" : "Warning",
-    "category" : "ErrorProne"
-  }, {
-    "patternId" : "cert-STR03-C",
-    "level" : "Warning",
-    "category" : "ErrorProne"
-  }, {
-    "patternId" : "cert-STR05-C",
-    "level" : "Warning",
-    "category" : "ErrorProne"
-  }, {
-    "patternId" : "cert-STR07-C",
-    "level" : "Warning",
-    "category" : "Security",
-    "subCategory" : "InsecureModulesLibraries"
-  }, {
-    "patternId" : "cert-STR11-C",
-    "level" : "Warning",
-    "category" : "ErrorProne"
-  }, {
-    "patternId" : "cert-API01-C",
-    "level" : "Warning",
-    "category" : "Security",
-    "subCategory" : "UnexpectedBehaviour"
   }, {
     "patternId" : "y2038-type-bits-not-64",
     "level" : "Error",
diff --git a/src/main/scala/codacy/cppcheck/CPPCheck.scala b/src/main/scala/codacy/cppcheck/CPPCheck.scala
index 95ff854..7af39f6 100755
--- a/src/main/scala/codacy/cppcheck/CPPCheck.scala
+++ b/src/main/scala/codacy/cppcheck/CPPCheck.scala
@@ -54,7 +54,7 @@ object CPPCheck extends Tool {
       }
 
       val command: List[String] = List("cppcheck", "--enable=all") ++
-        addonIfNeeded("cert") ++
+        //addonIfNeeded("cert") ++
         addonIfNeeded("y2038") ++
         addonIfNeeded("threadsafety") ++
         addonIfNeeded("misra", Some("addons/misra.json")) ++
@@ -68,7 +68,6 @@ object CPPCheck extends Tool {
           """--template={"patternId":"{id}","file":"{file}","line":"{line}","message":"{message}"}"""
         ) ++
         filesToLint
-
       CommandRunner.exec(command) match {
         case Right(resultFromTool) =>
           val output = resultFromTool.stdout ++ resultFromTool.stderr