diff --git a/src/ifctester/ifctester/ids.py b/src/ifctester/ifctester/ids.py
index 04ae4e7e95..7aecf040d3 100644
--- a/src/ifctester/ifctester/ids.py
+++ b/src/ifctester/ifctester/ids.py
@@ -328,7 +328,7 @@ class Specification:
                 for facet in self.requirements:
                     facet.status = False
         elif self.maxOccurs == 0:  # Prohibited specification
-            if self.applicable_entities and not self.requirements:
+            if self.applicable_entities:
                 self.status = False
 
     def get_usage(self) -> Cardinality:
diff --git a/src/ifctester/ifctester/reporter.py b/src/ifctester/ifctester/reporter.py
index c1bbbb177f..754a32755f 100644
--- a/src/ifctester/ifctester/reporter.py
+++ b/src/ifctester/ifctester/reporter.py
@@ -86,7 +86,7 @@ class ResultsSpecification(TypedDict):
     total_checks_pass: int
     total_checks_fail: int
     percent_checks_pass: ResultsPercent
-    required: bool
+    cardinality: str
     applicability: list[str]
     requirements: list[ResultsRequirement]
 
@@ -356,6 +356,13 @@ class Json(Reporter):
         )
         percent_checks_pass = math.floor((total_checks_pass / total_checks) * 100) if total_checks else "N/A"
 
+        if specification.minOccurs == 1 and specification.maxOccurs == "unbounded":
+            cardinality = "required"
+        elif specification.minOccurs == 0 and specification.maxOccurs == "unbounded":
+            cardinality = "optional"
+        elif specification.minOccurs == 0 and specification.maxOccurs == 0:
+            cardinality = "prohibited"
+
         return ResultsSpecification(
             name=specification.name,
             description=specification.description,
@@ -370,7 +377,7 @@ class Json(Reporter):
             total_checks_pass=total_checks_pass,
             total_checks_fail=total_checks - total_checks_pass,
             percent_checks_pass=percent_checks_pass,
-            required=specification.minOccurs != 0,
+            cardinality=cardinality,
             applicability=applicability,
             requirements=requirements,
         )
@@ -435,6 +442,12 @@ class Html(Json):
     def report(self) -> None:
         super().report()
         for spec in self.results["specifications"]:
+            print('checking', spec["cardinality"])
+            if spec["cardinality"] == "optional" and spec["total_checks"] == 0:
+                spec["is_skipped"] = True
+            spec["is_prohibited"] = spec["cardinality"] == "prohibited"
+            spec["cardinality"] = spec["cardinality"].capitalize()
+            spec["has_requirements"] = bool(spec["requirements"])
             for requirement in spec["requirements"]:
                 total_passed_entities = len(requirement["passed_entities"])
                 total_failed_entities = len(requirement["failed_entities"])
diff --git a/src/ifctester/ifctester/templates/report.html b/src/ifctester/ifctester/templates/report.html
index 71f89a3d08..a6e3157961 100644
--- a/src/ifctester/ifctester/templates/report.html
+++ b/src/ifctester/ifctester/templates/report.html
@@ -107,16 +107,26 @@
             {{/instructions}}
 
             <div class="container">
-                <div class="{{^total_checks}}skipped{{/total_checks}}{{#total_checks}}{{#status}}pass{{/status}}{{^status}}fail{{/status}}{{/total_checks}} percent" style="width: {{^total_checks}}100{{/total_checks}}{{#total_checks}}{{percent_checks_pass}}{{/total_checks}}%;">{{^total_checks}}Skipped{{/total_checks}}{{#total_checks}}{{percent_checks_pass}}%{{/total_checks}}</div>
+                <div class="
+                {{#is_skipped}}skipped{{/is_skipped}}
+                {{^is_skipped}}{{#status}}pass{{/status}}{{^status}}fail{{/status}}{{/is_skipped}}
+                percent" style="width: {{^total_checks}}100{{/total_checks}}{{#total_checks}}{{percent_checks_pass}}{{/total_checks}}%;">{{#is_skipped}}Skipped{{/is_skipped}}{{^is_skipped}}{{percent_checks_pass}}%{{/is_skipped}}</div>
             </div>
             <p>
-                <span class="item {{^total_checks}}skipped{{/total_checks}}{{#total_checks}}{{#status}}pass{{/status}}{{^status}}fail{{/status}}{{/total_checks}}">{{^total_checks}}Skipped{{/total_checks}}{{#total_checks}}{{#status}}Pass{{/status}}{{^status}}Fail{{/status}}{{/total_checks}}</span>
+                <span class="item {{#is_skipped}}skipped{{/is_skipped}}{{^is_skipped}}{{#status}}pass{{/status}}{{^status}}fail{{/status}}{{/is_skipped}}">{{#is_skipped}}Optional: Skipped{{/is_skipped}}{{^is_skipped}}{{#status}}{{cardinality}}: Pass{{/status}}{{^status}}{{cardinality}}: Fail{{/status}}{{/is_skipped}}</span>
+                {{#is_prohibited}}
+                <span class="item">
+                    Elements matched: <strong>{{total_applicable}}</strong>
+                </span>
+                {{/is_prohibited}}
+                {{^is_prohibited}}
                 <span class="item">
                     Checks passed: <strong>{{total_checks_pass}}</strong> / <strong>{{total_checks}}</strong>
                 </span>
                 <span class="item">
                     Elements passed: <strong>{{total_applicable_pass}}</strong> / <strong>{{total_applicable}}</strong>
                 </span>
+                {{/is_prohibited}}
             </p>
             {{^is_ifc_version}}
             <p>
@@ -135,9 +145,11 @@
                 <li>{{.}}</li>
                 {{/applicability}}
             </ul>
+            {{#has_requirements}}
             <p>
                 <strong>Requirements</strong>
             </p>
+            {{/has_requirements}}
             <ol>
                 {{#requirements}}
                 <li class="{{^total_checks}}skipped{{/total_checks}}{{#total_checks}}{{#status}}pass{{/status}}{{^status}}fail{{/status}}{{/total_checks}}">