--- a/rdf-turtle/n-triples.html	Mon Jul 15 13:02:20 2013 -0700
+++ b/rdf-turtle/n-triples.html	Mon Jul 15 13:03:22 2013 -0700
@@ -223,11 +223,11 @@
       <p>A <strong>canonical N-Triple document</strong> is a <strong>N-Triple document</strong> with additional constraints:<p>
 
       <ul>
-        <li>Space between terms (<code>WS+</code>) SHOULD be a single space, (<code>U+0020</code>).
-        <li>Space after or before terms (<code>WS*</code>) SHOULD be empty.
-        <li><code>HEX</code> SHOULD use only uppercase letters (<code>[A-F]</code>).
-        <li>Characters not allowed directly in STRING_LITERAL_QUOTE (<code>U+0022</code>, <code>U+005C</code>, <code>U+000A</code>, <code>U+000D</code>) SHOULD use <code>ECHAR</code> not <code>UCHAR</code>.
-        <li>Characters SHOULD be represented directly and not by <code>UCHAR</code>.
+        <li>Space between terms (<code>WS+</code>) MUST be a single space, (<code>U+0020</code>).
+        <li>Space after or before terms (<code>WS*</code>) MUST be empty.
+        <li><code>HEX</code> MUST use only uppercase letters (<code>[A-F]</code>).
+        <li>Characters not allowed directly in STRING_LITERAL_QUOTE (<code>U+0022</code>, <code>U+005C</code>, <code>U+000A</code>, <code>U+000D</code>) MUST use <code>ECHAR</code> not <code>UCHAR</code>.
+        <li>Characters MUST be represented directly and not by <code>UCHAR</code>.
       </ul>
 
       <p>A conforming <strong>N-Triple parser</strong> is a system capable of reading N-Triple documents on behalf of an application. It makes the serialized RDF graph, as defined in <a href="#sec-parsing" class="sectionRef"></a>, available to the application, usually through some form of API.</p>