diff --git a/Common.tex b/Common.tex
index 14160d6..0341819 100644
--- a/Common.tex
+++ b/Common.tex
@@ -383,6 +383,35 @@ \section{Attribute Functions}\label{sec:Attributes}
 	\returnval{PWR_RET_OUT_OF_RANGE} 		{The value was out of range for the target attribute.}
 	\returnval{PWR_RET_FAILURE} 			{Upon FAILURE.}
 \end{prototype}
+%==============================================================================%
+%int PWR_ObjAttrTrackValue( PWR_Obj object, PWR_AttrName attr, void* trackingptr, int id, PWR_AttrTracking type );
+\begin{prototype}{ObjAttrStartTrackingValue}
+	\longdescription{The \texttt{PWR_ObjAttrTrackValue} function is provided to
+	start tracking for changes in the value of a single specified attribute (\texttt{PWR_AttrName attr}) of a single specified object (\texttt{PWR_Obj object}).}
+	\returntype{int}
+	\parameter{PWR_Obj object}	{\pInput}	{The target object.}
+	\parameter{PWR_AttrName attr}	{\pInput}	{The target attribute. See section \ref{type:AttrName} for a list of available attributes.}
+	\parameter{void* trackingptr}	{\pInput}	{Pointer to a function to be called when the attribute changes.}
+	\parameter{int id}              {\pInput}   {User defined ID value returned to callback function when attribute changes.}
+	\parameter{PWR_AttrTracking type}	{\pInput}   {Specify \texttt{PWR_TRACKING_APIONLY} for changes
+	only done through the Power API or \texttt{PWR_TRACKING_POLL} for polling from any changes (warning polling may have adverse performance ramifications.}
+	\paramter{PWR_Time timestamp} {\pinput} {Time stamp of when change occured.}
+        \parameter{PWR_Threshold} {\pinput} {Threshold of change in average value before callback is triggered.}
+	\returnval{PWR_RET_SUCCESS} 			{Upon SUCCESS.}
+	\returnval{PWR_RET_NOT_IMPLEMENTED} 		{The requested attribute is not supported for the target object.}
+	\returnval{PWR_RET_FAILURE} 			{Upon FAILURE.}
+\end{prototype}
+%==============================================================================%
+%int PWR_ObjAttrStopTrackingValue( PWR_Obj object, PWR_AttrName attr );
+\begin{prototype}{ObjAttrStopTrackingValue}
+	\longdescription{The \texttt{PWR_ObjAttrStopTrackingValue} function is provided to stop tracking the value of a single specified attribute (\texttt{PWR_AttrName attr}) of a single specified object (\texttt{PWR_Obj object}).}
+	\returntype{int}
+	\parameter{PWR_Obj object}	{\pInput}	{The target object.}
+	\parameter{PWR_AttrName attr}	{\pInput}	{The target attribute. See section \ref{type:AttrName} for a list of available attributes.}
+	\returnval{PWR_RET_SUCCESS} 			{Upon SUCCESS.}
+	\returnval{PWR_RET_FAILURE} 			{Upon FAILURE.}
+\end{prototype}
+
 %==============================================================================%
 %int PWR_StatusCreate( PWR_Cntxt context, PWR_Status* status );
 \begin{prototype}{StatusCreate}
diff --git a/PowerAPI_Community.pdf b/PowerAPI_Community.pdf
index 9a62787..ea06b91 100644
Binary files a/PowerAPI_Community.pdf and b/PowerAPI_Community.pdf differ
diff --git a/TypeDefs.tex b/TypeDefs.tex
index 502afb5..8fa5142 100644
--- a/TypeDefs.tex
+++ b/TypeDefs.tex
@@ -161,7 +161,7 @@ \section{Attribute Relevant Type Definitions}\label{sec:AttributeTypeDefinitions
 Additional capabilities are and can be added using additional operations and often interface specific functions.
 
 The \typeref{AttrAccessError} type is used to hold the error returns that are popped from the \texttt{PWR_Status} handle (see section \ref{sec:OpaqueTypes}) using the \funcref{StatusPopError} function.
-
+The \typeref{AttrTracking} type is used to define the mode in which tracking the change for a given attribute is done, whether through the Power API only, or through polling or underlying device support to capture changes from all sources.
 %==============================================================================%
 
 \subsubsection{PWR_AttrName}\label{type:AttrName}
@@ -246,6 +246,24 @@ \subsubsection{PWR_AttrGov}\label{type:AttrGov}
 \end{lstlisting}
 \end{minipage}
 \end{center}
+
+%==============================================================================%
+
+\subsubsection{PWR_AttrTracking}\label{type:AttrTracking}
+\begin{center}
+\begin{minipage}{.95\linewidth}%
+\begin{lstlisting}
+typedef enum {
+        PWR_TRACKING_APIONLY,
+        PWR_TRACKING_POLL,
+        PWR_TRACKING_DEVICE
+} PWR_AttrTracking;
+\end{lstlisting}
+\end{minipage}
+\end{center}
+
+
+
 %==============================================================================%
 %==============================================================================%
 %==============================================================================%
@@ -609,4 +627,3 @@ \subsubsection{PWR_PerfState}\label{type:PerfState}
 \end{minipage}
 \end{center}
 
-