diff --git a/src/registrar/assets/src/js/getgov/domain-purpose-form.js b/src/registrar/assets/src/js/getgov/domain-purpose-form.js
index 7cde5bc35..54a590ed2 100644
--- a/src/registrar/assets/src/js/getgov/domain-purpose-form.js
+++ b/src/registrar/assets/src/js/getgov/domain-purpose-form.js
@@ -1,8 +1,16 @@
 import { showElement } from './helpers.js';
 
+// Flag to track if we're in the initial page load
+let isInitialLoad = true;
+
 export const domain_purpose_choice_callbacks = {
     'new': {
-        callback: function(value, element) {
+        callback: function(value, element, event) {
+            // Only clear errors if this is a user-initiated event (not initial page load)
+            if (!isInitialLoad) {
+                clearErrors(element);
+            }
+
             //show the purpose details container
             showElement(element);
             // change just the text inside the em tag
@@ -13,29 +21,98 @@ export const domain_purpose_choice_callbacks = {
                 'Include any data that supports a clear public benefit or ' +
                 'evidence user need for this new domain. ' +
                 '<span class="usa-label--required">*</span>';
+                
+            // Mark that we're no longer in initial load
+            isInitialLoad = false;
         },
         element: document.getElementById('purpose-details-container')
     },
     'redirect': {
-        callback: function(value, element) {
+        callback: function(value, element, event) {
+            // Only clear errors if this is a user-initiated event (not initial page load)
+            if (!isInitialLoad) {
+                clearErrors(element);
+            }
+
             // show the purpose details container
             showElement(element);
             // change just the text inside the em tag
             const labelElement = element.querySelector('.usa-label em');
             labelElement.innerHTML = 'Explain why a redirect is necessary. ' +
                 '<span class="usa-label--required">*</span>';
+                
+            // Mark that we're no longer in initial load
+            isInitialLoad = false;
         },
         element: document.getElementById('purpose-details-container')
     },
     'other': {
-        callback: function(value, element) {
+        callback: function(value, element, event) {
+            // Only clear errors if this is a user-initiated event (not initial page load)
+            if (!isInitialLoad) {
+                clearErrors(element);
+            }
+
             // Show the purpose details container
             showElement(element);
             // change just the text inside the em tag
             const labelElement = element.querySelector('.usa-label em');
             labelElement.innerHTML = 'Describe how this domain will be used. ' +
                 '<span class="usa-label--required">*</span>';
+                
+            // Mark that we're no longer in initial load
+            isInitialLoad = false;
         },
         element: document.getElementById('purpose-details-container')
     }
+}
+
+// Function to check if errors are currently displayed
+function checkForErrors(element) {
+    const errorMessage = element.querySelector('#id_purpose-purpose__error-message');
+    const formGroup = element.querySelector('.usa-form-group.usa-form-group--error');
+    
+    // If either errors exist, set the flag to true
+    if (errorMessage || formGroup) {
+        errorsHaveBeenDisplayed = true;
+    }
+    
+    return errorsHaveBeenDisplayed;
+}
+
+// Helper function to clear error messages in a textarea
+function clearErrors(element) {
+    // Find the error message div
+    const errorMessage = element.querySelector('#id_purpose-purpose__error-message');
+    if (errorMessage) {
+        errorMessage.remove();
+    }
+    
+    // Find the form group and remove error class
+    const formGroup = element.querySelector('.usa-form-group');
+    if (formGroup) {
+        formGroup.classList.remove('usa-form-group--error');
+    }
+    
+    // Find the textarea and remove error class
+    const textarea = element.querySelector('#id_purpose-purpose');
+    if (textarea) {
+        textarea.classList.remove('usa-input--error');
+        
+        // Also update aria attributes
+        textarea.setAttribute('aria-invalid', 'false');
+        
+        // Remove error message from aria-describedby
+        const describedBy = textarea.getAttribute('aria-describedby');
+        if (describedBy) {
+            const newDescribedBy = describedBy.replace('id_purpose-purpose__error-message', '').trim();
+            textarea.setAttribute('aria-describedby', newDescribedBy);
+        }
+    }
+    
+    // Find the label and remove error class
+    const label = element.querySelector('label');
+    if (label) {
+        label.classList.remove('usa-label--error');
+    }
 }
\ No newline at end of file
diff --git a/src/registrar/forms/feb.py b/src/registrar/forms/feb.py
index 97b9b1ef4..3c61e613a 100644
--- a/src/registrar/forms/feb.py
+++ b/src/registrar/forms/feb.py
@@ -12,6 +12,8 @@ class ExecutiveNamingRequirementsYesNoForm(BaseYesNoForm, BaseDeletableRegistrar
 
     field_name = "feb_naming_requirements"
 
+    required_error_message = "Select \"Yes\" if your submission meets each domain naming requirement. Select \"No\" if it doesn't meet each requirement."  # noqa: E501
+
     @property
     def form_is_checked(self):
         """
@@ -26,7 +28,7 @@ class ExecutiveNamingRequirementsDetailsForm(BaseDeletableRegistrarForm):
         widget=forms.Textarea(attrs={"maxlength": "2000"}),
         max_length=2000,
         required=True,
-        error_messages={"required": ("This field is required.")},
+        error_messages={"required": ("Provide details on why your submission does not meet each domain naming requirement.")},  # noqa: E501
         validators=[
             MaxLengthValidator(
                 2000,
diff --git a/src/registrar/templates/domain_request_dotgov_domain.html b/src/registrar/templates/domain_request_dotgov_domain.html
index 57df80cb1..ceb293e8e 100644
--- a/src/registrar/templates/domain_request_dotgov_domain.html
+++ b/src/registrar/templates/domain_request_dotgov_domain.html
@@ -2,19 +2,25 @@
 {% load static field_helpers url_helpers %}
 
 {% block form_instructions %}
-  <p>Before requesting a .gov domain, please make sure it meets <a class="usa-link" rel="noopener noreferrer" target="_blank" href="{% if requires_feb_questions %}https://get.gov/domains/executive-branch-guidance/{% else %}{% public_site_url 'domains/choosing' %}{% endif %}">our naming requirements</a>. Your domain name must:
+  <p>
+    Before requesting a .gov domain, please make sure it meets 
+    {% if requires_feb_questions %}
+      <a class="usa-link" rel="noopener noreferrer" target="_blank" href="https://get.gov/domains/executive-branch-guidance/">our naming requirements for executive branch agencies</a>. Your domain name must:
+    {% else %}
+      <a class="usa-link" rel="noopener noreferrer" target="_blank" href="{% public_site_url 'domains/choosing' %}">our naming requirements</a>. Your domain name must:
+    {% endif %}
     <ul class="usa-list">
       <li>Be available </li>
-      <li>Relate to your organization's name, location, and/or services </li>
+      <li>Relate to your organization’s name, location, and/or services </li>
       <li>Be unlikely to mislead or confuse the general public (even if your domain is only intended for a specific audience) </li>
     </ul>
   </p>
 
   <p>Names that <em>uniquely apply to your organization</em> are likely to be approved over names that could also apply to other organizations. 
-    {% if not is_federal %}In most instances, this requires including your state's two-letter abbreviation.{% endif %}</p> 
+    {% if not is_federal %}In most instances, this requires including your state’s two-letter abbreviation.{% endif %}</p> 
   
   {% if not portfolio %}
-  <p>Requests for your organization's initials or an abbreviated name might not be approved, but we encourage you to request the name you want.</p> 
+  <p>Requests for your organization’s initials or an abbreviated name might not be approved, but we encourage you to request the name you want.</p> 
   {% endif %}
 
   <p>Note that <strong>only federal agencies can request generic terms</strong> like
@@ -29,7 +35,7 @@
 
 
 {% block form_required_fields_help_text %}
-{# empty this block so it doesn't show on this page #}
+{# empty this block so it doesn’t show on this page #}
 {% endblock %}
 
 
@@ -42,8 +48,8 @@
       <h2>What .gov domain do you want?</h2>
     </legend>
     <p id="domain_instructions" class="margin-top-05">
-      After you enter your domain, we'll make sure it's available and that it meets some of our naming requirements. 
-      If your domain passes these initial checks, we'll verify that it meets all our requirements after you complete the rest of this form.
+      After you enter your domain, we’ll make sure it’s available and that it meets some of our naming requirements. 
+      If your domain passes these initial checks, we’ll verify that it meets all our requirements after you complete the rest of this form.
     </p>
     {% with attr_aria_labelledby="domain_instructions domain_instructions2" attr_aria_describedby="id_dotgov_domain-requested_domain--toast" %}
       {# attr_validate / validate="domain" invokes code in getgov.min.js #}
@@ -65,7 +71,7 @@
       <h2 id="alternative-domains-title">Alternative domains (optional)</h2>
     </legend>
     <p id="alt_domain_instructions" class="margin-top-05">
-      Are there other domains you'd like if we can't give you your first choice?
+      Are there other domains you’d like if we can’t give you your first choice?
     </p>
     {% with attr_aria_labelledby="alt_domain_instructions" %}
       {# Will probably want to remove blank-ok and do related cleanup when we implement delete #}
@@ -99,7 +105,7 @@
       >Check availability</button>
     </div>
     <p class="margin-top-05">
-      If you're not sure this is the domain you want, that's ok. You can change the domain later.
+      If you’re not sure this is the domain you want, that’s ok. You can change the domain later.
     </p>
   </fieldset>
 
@@ -114,23 +120,21 @@
       <p id="dotgov-domain-naming-requirements" class="margin-top-05">
         OMB will review each request against the domain 
         <a class="usa-link" rel="noopener noreferrer" target="_blank" href="https://get.gov/domains/executive-branch-guidance/">
-          naming requirements for executive branch agencies
-        </a>. 
-        Agency submissions are expected to meet each requirement.
+          naming requirements for executive branch agencies.</a> Agency submissions are expected to meet each requirement.
+      </p>
+      <p class="usa-label margin-top-0 margin-bottom-0">
+        <em>Select one. <abbr class="usa-hint usa-hint--required" title="required">*</abbr></em>
       </p>
       {% with add_class="usa-radio__input--tile" add_legend_class="usa-sr-only" %}
         {% input_with_errors forms.2.feb_naming_requirements %}
       {% endwith %}
 
       {# Conditional Details Field – only shown when the executive naming requirements radio is "False" #}
-      <div id="domain-naming-requirements-details-container" class="conditional-panel" style="display: none;">
-        <p class="usa-label">
-          Provide details below <span class="usa-label--required">*</span>
-        </p>
+      <div id="domain-naming-requirements-details-container margin-top-3" class="conditional-panel" style="display: none;">
+        <p><em>Provide details below. <abbr class="usa-hint usa-hint--required" title="required">*</abbr></em></p>
         {% with add_label_class="usa-sr-only" attr_required="required" maxlength="2000" %}
           {% input_with_errors forms.3.feb_naming_requirements_details %}
         {% endwith %}
-        <p class="usa-hint">Maximum 2000 characters allowed.</p>
       </div>
     </fieldset>
   {% endif %}