diff --git a/documentation/poky-ref-manual/ref-classes.xml b/documentation/poky-ref-manual/ref-classes.xml
index 1532ccc917..d937334795 100644
--- a/documentation/poky-ref-manual/ref-classes.xml
+++ b/documentation/poky-ref-manual/ref-classes.xml
@@ -391,6 +391,87 @@
         for common problems that show up during runtime.
         Distribution policy usually dictates whether to include this class as the Yocto Project does.
     </para>
+
+    <para>
+        You can configure the sanity checks so that specific test failures either raise a warning or 
+        an error message.  
+        Typically, failures for new tests generate a warning.
+        Subsequent failures for the same test would then generate an error message 
+        once the metadata is in a known and good condition.
+        You use the <filename>WARN_QA</filename> variable to specify tests for which you 
+        want to generate a warning message on failure.
+        You use the <filename>ERROR_QA</filename> variable to specify tests for which you 
+        want to generate an error message on failure.
+    </para>
+
+    <para>
+        The following list shows the tests you can list with the <filename>WARN_QA</filename>
+        and <filename>ERROR_QA</filename> variables:
+        <itemizedlist>
+            <listitem><para><emphasis><filename>ldflags:</filename></emphasis>
+                Ensures that the binaries were linked with the 
+                <filename>LDFLAGS</filename> options provided by the build system. 
+                If this test fails, check that the <filename>LDFLAGS</filename> variable
+                is being passed to the linker command.</para></listitem>
+            <listitem><para><emphasis><filename>useless-rpaths:</filename></emphasis>
+                Checks for dynamic library load paths (rpaths) in the binaries that 
+                by default on a standard system are searched by the linker (e.g.
+                <filename>/lib</filename> and <filename>/usr/lib</filename>). 
+                While these paths will not cause any breakage, they do waste space and 
+                are unnecessary.</para></listitem>
+            <listitem><para><emphasis><filename>rpaths:</filename></emphasis>
+                Checks for rpaths in the binaries that contain build system paths such
+                as <filename>TMPDIR</filename>.
+                If this test fails, bad <filename>-rpath</filename> options are being 
+                passed to the linker commands and your binaries have potential security 
+                issues.</para></listitem>
+            <listitem><para><emphasis><filename>dev-so:</filename></emphasis>
+                Checks that the <filename>.so</filename> symbolic links are in the 
+                <filename>-dev</filename> package and not in any of the other packages. 
+                In general, these symlinks are only useful for development purposes.
+                Thus, the <filename>-dev</filename> package is the correct location for
+                them. 
+                Some very rare cases do exist for dynamically loaded modules where 
+                these symlinks are needed instead in the main package.
+                </para></listitem>
+            <listitem><para><emphasis><filename>debug-files:</filename></emphasis>
+                Checks for <filename>.debug</filename> directories in anything but the 
+                <filename>-dbg</filename> package. 
+                The debug files should all be in the <filename>-dbg</filename> package.
+                Thus, anything packaged elsewhere is incorrect packaging.</para></listitem>
+            <listitem><para><emphasis><filename>arch:</filename></emphasis>
+                Checks the Executable and Linkable Format (ELF) type, bit size and endianness 
+                of any binaries to ensure it matches the target architecture. 
+                This test fails if any binaries don't match the type since there would be an 
+                incompatibility. 
+                Sometimes software, like bootloaders, might need to bypass this check.
+                </para></listitem>
+            <listitem><para><emphasis><filename>debug-deps:</filename></emphasis>
+                Checks that <filename>-dbg</filename> packages only depend on other
+                <filename>-dbg</filename> packages and not on any other types of packages,
+                which would cause a packaging bug.</para></listitem>
+            <listitem><para><emphasis><filename>dev-deps:</filename></emphasis>
+                Checks that <filename>-dev</filename> packages only depend on other 
+                <filename>-dev</filename> packages and not on any other types of packages,
+                which would be a packaging bug.</para></listitem>
+            <listitem><para><emphasis><filename>pkgconfig:</filename></emphasis>
+                Checks <filename>.pc</filename> files for any 
+                <filename>TMPDIR/WORKDIR</filename> paths. 
+                Any <filename>.pc</filename> file containing these paths is incorrect 
+                since <filename>pkg-config</filename> itself adds the correct sysroot prefix 
+                when the files are accessed.</para></listitem>
+            <listitem><para><emphasis><filename>la:</filename></emphasis>
+                Checks <filename>.la</filename> files for any <filename>TMPDIR</filename>
+                paths. 
+                Any <filename>.la</filename> file continaing these paths is incorrect since 
+                <filename>libtool</filename> adds the correct sysroot prefix when using the 
+                files automatically itself.</para></listitem>
+            <listitem><para><emphasis><filename>desktop:</filename></emphasis>
+                Runs the <filename>desktop-file-validate</filename> program against any 
+                <filename>.desktop</filename> files to validate their contents against 
+                the specification for <filename>.desktop</filename> files.</para></listitem>
+        </itemizedlist>
+    </para>
 </section>
 
 <section id='ref-classes-siteinfo'>