diff --git a/249GURUtility.h b/249GURUtility.h
index 059d80a..0234dab 100644
--- a/249GURUtility.h
+++ b/249GURUtility.h
@@ -1,3 +1,18 @@
+// preprocessor directives
+#ifndef GUR249_UTILITY
+#define GUR249_UTILITY
+
+// header files
+//#include ""
+//#include <>
+
+// constants
+// none currently
+
+// data structures
+// none currently
+
+// function prototypes
 /*
 Name: checkForSingleLetterVariable (GUR 1 - 249)
 Process: checks for single letter variables in code, warns if there may be a
@@ -296,4 +311,6 @@ Function output/returned: ???
 Device input/ ---: ???
 Device output/ ---: ???
 Dependencies: ???
-*/
\ No newline at end of file
+*/
+
+#endif
\ No newline at end of file
diff --git a/CodeBlockUtils.h b/CodeBlockUtils.h
new file mode 100644
index 0000000..f3ad857
--- /dev/null
+++ b/CodeBlockUtils.h
@@ -0,0 +1,40 @@
+// preprocessor directives
+#ifndef CB_UTILITY
+#define CB_UTILITY
+
+// header files
+// #include ""
+// #include <>
+
+// constants
+// none currently
+
+// data structures
+// none currently
+
+// function prototypes
+
+/*
+Name: isWithinCodeBlock
+Process: checks if currently within a code block, between {}. Returns -1 if in
+         global context, returns 0+ depending how nested the code block is.
+Function input/parameters: ???
+Function output/parameters: ???
+Function output/returned: ???
+Device input/ ---: ???
+Device output/ ---: ???
+Dependencies: ???
+*/
+
+/*
+Name: template
+Process: template prototype commentary
+Function input/parameters: ???
+Function output/parameters: ???
+Function output/returned: ???
+Device input/ ---: ???
+Device output/ ---: ???
+Dependencies: ???
+*/
+
+#endif
\ No newline at end of file