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 = [
diff --git a/www/conservancy/apps/assignment/models.py b/www/conservancy/apps/assignment/models.py
index d7bb22ecd0a6b78dabb4165bbcf6d91c259c422c..f69965b8e8af76eaa9998cc93f24529d29002600 100644
--- a/www/conservancy/apps/assignment/models.py
+++ b/www/conservancy/apps/assignment/models.py
@@ -31,12 +31,12 @@ class Assignment(models.Model):
     email = models.EmailField('Email address (to contact you if we have questions)')
     country_of_residence = CountryField()
     repositories = models.TextField(
-        'Code repositories contributed to that you\'d like to assign',
+        'Code repositories containing contributions of yours whose copyright you\'d like to assign',
         help_text='List of URLs, one per line',
         validators=[validate_mutiple_urls],
     )
     all_emails = models.TextField(
-        'All email addresses and/or names used by you to contribute to the above',
+        'All email addresses used by you to contribute to the above (i.e. in the commit logs)',
     )
     period_begins = models.DateField(
         'Assignment period begins',
diff --git a/www/conservancy/apps/assignment/terms.py b/www/conservancy/apps/assignment/terms.py
index 0d0e56d9f29cc3172fbb63b39702625c45755545..75549e2ec5e49f53fe159ea45b0983baa9fd5b64 100644
--- a/www/conservancy/apps/assignment/terms.py
+++ b/www/conservancy/apps/assignment/terms.py
@@ -94,8 +94,8 @@ TERMS = textwrap.dedent("""\
     asserted by or paid to any party on account of a breach or alleged breach
     of the foregoing warranty.  Assignor makes no other express or implied
     warranty (including without limitation, in this disclaimer of warranty,
-    any warranty of <em>merchantability</em> or <em>fitness for a particular
-    purpose</em>).
+    any warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+    PURPOSE).
 
 
     Exhibit A
@@ -112,10 +112,10 @@ TERMS = textwrap.dedent("""\
     The above copyright notice and this permission notice shall be included in
     all copies or substantial portions of the Software.
 
-    <em>The software is provided ``as is'', without warranty of any kind, express or
-    implied, including but not limited to the warranties of merchantability,
-    fitness for a particular purpose and noninfringement.  In no event shall
-    the authors or copyright holders be liable for any claim, damages or other
-    liability, whether in an action of contract, tort or otherwise, arising
-    from, out of or in connection with the software or the use or other
-    dealings in the software.</em>""")
+    THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+    THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+    DEALINGS IN THE SOFTWARE.""")
diff --git a/www/conservancy/templates/assignment/assignment_form.html b/www/conservancy/templates/assignment/assignment_form.html
index 753cd42760cad40ad5b769b3e57ad5acb698ea84..ea13b9a12d9a9069d46574d6cf4322678caabb45 100644
--- a/www/conservancy/templates/assignment/assignment_form.html
+++ b/www/conservancy/templates/assignment/assignment_form.html
@@ -10,11 +10,34 @@
 
     <p>If you have any questions about assigning your copyright to Conservancy, please don't hesitate to email us at <a href="mailto:info@sfconservancy.org">info@sfconservancy.org</a>.</p>
 
-    <form action="." method="post" class="mw7">
+    <form id="assignment-form" action="." method="post" class="mw7">
       {% csrf_token %}
       {{ form.as_p }}
 
-      <p><button type="submit" class="ph3 pv2">Next</button></p>
+      <p><button type="submit" class="ph3 pv2">Submit</button></p>
     </form>
   </div>
+
+  <script>
+   'use strict';
+
+   // End date field should be shown only when "a specific past date" is selected.
+   const form = document.querySelector('#assignment-form');
+   const past_date_label = document.querySelector('label[for=id_period_ends]');
+   const past_date_field = document.querySelector('#assignment-form > p:nth-child(11)');
+   form.addEventListener('change', togglePastDate);
+   togglePastDate();  // Run change handler once to initialise form.
+
+   // Text "(if applicable)" isn't relevant with JS enabled.
+   past_date_label.innerHTML = past_date_label.innerHTML.replace(' (if applicable)', '');
+
+   function togglePastDate() {
+       if (form['period_end_type'].value === 'all future contributions') {
+           past_date_field.style.display = 'none';
+       }
+       else {
+           past_date_field.style.display = '';
+       }
+   }
+  </script>
 {% endblock %}
diff --git a/www/conservancy/templates/assignment/base_assignment.html b/www/conservancy/templates/assignment/base_assignment.html
index 6aec1c425056278c5dd0c941e7371be282554ed0..1af63a6c64c63647060f4eb60958904f4fd5346e 100644
--- a/www/conservancy/templates/assignment/base_assignment.html
+++ b/www/conservancy/templates/assignment/base_assignment.html
@@ -26,7 +26,7 @@
    }
    textarea {
      width: 100%;
-     max-width: 35rem;
+     max-width: 45rem;
      height: 8rem;
      padding: 0.25rem;
    }
diff --git a/www/conservancy/templates/assignment/thanks.html b/www/conservancy/templates/assignment/thanks.html
index 86be3ba4c1330ff7c75f38d91411a51f5288de7e..e8be9ec91d61041e9909e1d83282b6b8ebdeefa5 100644
--- a/www/conservancy/templates/assignment/thanks.html
+++ b/www/conservancy/templates/assignment/thanks.html
@@ -6,7 +6,8 @@
 
   <div class="mw7 mb5">
     <p>Thank you for assigning your copyright to Software Freedom Conservancy! We have recorded the below information regarding the assignment and the works.</p>
-    <p>If you would like to make any changes, you must let us know within 7 days by emailing <a href="mailto:info@sfconservancy.org">info@sfconservancy.org</a>. Thanks for helping us enforce free and open source software licenses!</p>
+    <p>We will be sending out verification emails to the email addresses you used to contribute, as specified below, in the coming weeks.  Please follow the instructions there to complete the verification at that time.</p>
+    <p>If you would like to make any changes, you must let us know within 7 days by emailing <a href="mailto:info@sfconservancy.org">info@sfconservancy.org</a>, which is also where you can reach us if you have any questions.</p>
     <form>
       {{ form.as_p }}
     </form>