diff --git a/benefits/core/templates/core/includes/form.html b/benefits/core/templates/core/includes/form.html
index 4f0932fda..cdf69abac 100644
--- a/benefits/core/templates/core/includes/form.html
+++ b/benefits/core/templates/core/includes/form.html
@@ -60,7 +60,7 @@
           $(this).trigger("submitting");
         });
 
-        {% if use_custom_validity %}
+        {% if form.use_custom_validity %}
         const validate = function(input_element) {
           input_element.setCustomValidity(""); // clearing message sets input_element.validity.customError back to false
 
diff --git a/benefits/eligibility/forms.py b/benefits/eligibility/forms.py
index d83fc8065..d66ee506b 100644
--- a/benefits/eligibility/forms.py
+++ b/benefits/eligibility/forms.py
@@ -34,6 +34,7 @@ def __init__(self, agency: models.TransitAgency, *args, **kwargs):
         verifier_field.choices = [(v.id, None) for v in verifiers]
         verifier_field.widget.selection_label_templates = {v.id: v.selection_label_template for v in verifiers}
         verifier_field.widget.attrs.update({"data-custom-validity": _("Please choose a transit benefit.")})
+        self.use_custom_validity = True
 
     def clean(self):
         if not recaptcha.verify(self.data):
@@ -118,6 +119,7 @@ def __init__(
             sub_widget.attrs.update({"maxlength": sub_max_length})
         if sub_custom_validity:
             sub_widget.attrs.update({"data-custom-validity": sub_custom_validity})
+            self.use_custom_validity = True
 
         self.fields["sub"] = forms.CharField(
             label=sub_label,
@@ -130,6 +132,7 @@ def __init__(
             name_widget.attrs.update({"maxlength": name_max_length})
         if name_custom_validity:
             name_widget.attrs.update({"data-custom-validity": name_custom_validity})
+            self.use_custom_validity = True
 
         self.fields["name"] = forms.CharField(label=name_label, widget=name_widget, help_text=name_help_text)
 
diff --git a/benefits/eligibility/templates/eligibility/confirm.html b/benefits/eligibility/templates/eligibility/confirm.html
index 70897e7d9..31f617422 100644
--- a/benefits/eligibility/templates/eligibility/confirm.html
+++ b/benefits/eligibility/templates/eligibility/confirm.html
@@ -27,6 +27,6 @@ <h1>{{ form.headline }}</h1>
 
 {% block inner-content %}
   <div class="container">
-    <div class="row">{% include "core/includes/form.html" with form=form use_custom_validity=True %}</div>
+    <div class="row">{% include "core/includes/form.html" with form=form %}</div>
   </div>
 {% endblock inner-content %}
diff --git a/benefits/eligibility/templates/eligibility/index.html b/benefits/eligibility/templates/eligibility/index.html
index 5b3a701da..c618a9711 100644
--- a/benefits/eligibility/templates/eligibility/index.html
+++ b/benefits/eligibility/templates/eligibility/index.html
@@ -24,5 +24,5 @@ <h1>{% translate "Choose the transit benefit you would like to enroll in" %}</h1
 {% endblock explanatory-text %}
 
 {% block inner-content %}
-  {% include "core/includes/form.html" with form=form use_custom_validity=True %}
+  {% include "core/includes/form.html" with form=form %}
 {% endblock inner-content %}
diff --git a/tests/pytest/eligibility/test_forms.py b/tests/pytest/eligibility/test_forms.py
index 6ddafb79b..42799ebac 100644
--- a/tests/pytest/eligibility/test_forms.py
+++ b/tests/pytest/eligibility/test_forms.py
@@ -16,6 +16,8 @@ def test_MSTCourtesyCard():
     assert name_attrs["maxlength"] == 255
     assert name_attrs["data-custom-validity"] == "Please enter your last name."
 
+    assert form.use_custom_validity
+
 
 def test_SBMTDMobilityPass():
     form = SBMTDMobilityPass(data={"sub": "1234", "name": "Barbara"})
@@ -31,3 +33,5 @@ def test_SBMTDMobilityPass():
     name_attrs = form.fields["name"].widget.attrs
     assert name_attrs["maxlength"] == 255
     assert name_attrs["data-custom-validity"] == "Please enter your last name."
+
+    assert form.use_custom_validity