diff --git a/www/conservancy/apps/assignment/forms.py b/www/conservancy/apps/assignment/forms.py
index f69333555d79197f67825a8e2372b6f88da851da..8777e0b4857fc36018b98894832587f60447ed31 100644
--- a/www/conservancy/apps/assignment/forms.py
+++ b/www/conservancy/apps/assignment/forms.py
@@ -13,18 +13,20 @@ def validate_in_past(value):
 
 class AssignmentForm(forms.ModelForm):
     period_begins = forms.DateField(
-        label='Start of period to assign',
+        label='Assign the copyright in my above contributions starting on',
+        help_text='You can use the day you first started contributing (or, equivalently, your date of birth), or any later date.',
         required=True,
         widget=forms.DateInput(attrs={'type': 'date'}),
         validators=[validate_in_past],
     )
     period_end_type = forms.ChoiceField(
-        label='End of period to assign',
+        label='and ending on',
         choices=[
-            ('all future contributions', 'all future contributions'),
+            ('all future contributions', 'all future contributions (no end date)'),
             ('a specific past date', 'a specific past date (specify below)'),
         ],
         widget=forms.RadioSelect(),
+        initial='all future contributions',
     )
     period_ends = forms.DateField(
         label='Specific past date (if applicable)',
@@ -38,6 +40,10 @@ class AssignmentForm(forms.ModelForm):
         help_text='Please be aware that some employment agreements explicitly transfer copyright ownership to the employer. We recommend you review your recent employment agreements for such clauses.',
     )
 
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.fields['attestation_of_copyright'].required = True
+
     class Meta:
         model = Assignment
         fields = [