diff --git a/bodyshop_translations.babel b/bodyshop_translations.babel
index 67e97ec5a..132e51f2b 100644
--- a/bodyshop_translations.babel
+++ b/bodyshop_translations.babel
@@ -2063,6 +2063,32 @@
                                     </concept_node>
                                 </children>
                             </folder_node>
+                            <folder_node>
+                                <name>validation</name>
+                                <children>
+                                    <concept_node>
+                                        <name>atleastone</name>
+                                        <definition_loaded>false</definition_loaded>
+                                        <description></description>
+                                        <comment></comment>
+                                        <default_text></default_text>
+                                        <translations>
+                                            <translation>
+                                                <language>en-US</language>
+                                                <approved>false</approved>
+                                            </translation>
+                                            <translation>
+                                                <language>es-MX</language>
+                                                <approved>false</approved>
+                                            </translation>
+                                            <translation>
+                                                <language>fr-CA</language>
+                                                <approved>false</approved>
+                                            </translation>
+                                        </translations>
+                                    </concept_node>
+                                </children>
+                            </folder_node>
                         </children>
                     </folder_node>
                     <folder_node>
diff --git a/client/src/components/bill-form/bill-form.lines.component.jsx b/client/src/components/bill-form/bill-form.lines.component.jsx
index 30aebdfe8..31ea44149 100644
--- a/client/src/components/bill-form/bill-form.lines.component.jsx
+++ b/client/src/components/bill-form/bill-form.lines.component.jsx
@@ -552,7 +552,20 @@ export function BillEnterModalLinesComponent({
     });
 
   return (
-    <Form.List name="billlines">
+    <Form.List
+      name="billlines"
+      rules={[
+        {
+          validator: async (_, billlines) => {
+            if (!billlines || billlines.length < 1) {
+              return Promise.reject(
+                new Error(t("billlines.validation.atleastone"))
+              );
+            }
+          },
+        },
+      ]}
+    >
       {(fields, { add, remove, move }) => {
         return (
           <>
diff --git a/client/src/translations/en_us/common.json b/client/src/translations/en_us/common.json
index 1ca15c9bd..b8b7ba774 100644
--- a/client/src/translations/en_us/common.json
+++ b/client/src/translations/en_us/common.json
@@ -136,6 +136,9 @@
 				"other": "-- Not On Estimate --",
 				"reconciled": "Reconciled!",
 				"unreconciled": "Unreconciled"
+			},
+			"validation": {
+				"atleastone": "At least one bill line must be entered."
 			}
 		},
 		"bills": {
diff --git a/client/src/translations/es/common.json b/client/src/translations/es/common.json
index b0f04fef8..07c7aa35e 100644
--- a/client/src/translations/es/common.json
+++ b/client/src/translations/es/common.json
@@ -136,6 +136,9 @@
 				"other": "",
 				"reconciled": "",
 				"unreconciled": ""
+			},
+			"validation": {
+				"atleastone": ""
 			}
 		},
 		"bills": {
diff --git a/client/src/translations/fr/common.json b/client/src/translations/fr/common.json
index ddb84ae53..eeeeb35b9 100644
--- a/client/src/translations/fr/common.json
+++ b/client/src/translations/fr/common.json
@@ -136,6 +136,9 @@
 				"other": "",
 				"reconciled": "",
 				"unreconciled": ""
+			},
+			"validation": {
+				"atleastone": ""
 			}
 		},
 		"bills": {