diff --git a/apps/mina-sidor-fa/src/app/pages/deltagare/pages/deltagare-report/pages/deltagare-avvikelse/deltagare-avvikelse.component.html b/apps/mina-sidor-fa/src/app/pages/deltagare/pages/deltagare-report/pages/deltagare-avvikelse/deltagare-avvikelse.component.html
index 5ea92a4..a32d392 100644
--- a/apps/mina-sidor-fa/src/app/pages/deltagare/pages/deltagare-report/pages/deltagare-avvikelse/deltagare-avvikelse.component.html
+++ b/apps/mina-sidor-fa/src/app/pages/deltagare/pages/deltagare-report/pages/deltagare-avvikelse/deltagare-avvikelse.component.html
@@ -83,6 +83,7 @@
             <digi-ng-form-radiobutton-group
               [afRadiobuttons]="dayOrPartOfDay"
               [formControlName]="dayOrPartOfDayFormControlName"
+              [afRequired]="avvikelseFormGroup.errors?.dayOrPartOfDayIsRequired"
             ></digi-ng-form-radiobutton-group>
           </div>
           <ng-container *ngIf="showTimePicker">
diff --git a/apps/mina-sidor-fa/src/app/pages/deltagare/pages/deltagare-report/pages/deltagare-avvikelse/deltagare-avvikelse.component.ts b/apps/mina-sidor-fa/src/app/pages/deltagare/pages/deltagare-report/pages/deltagare-avvikelse/deltagare-avvikelse.component.ts
index 47e984a..81343bf 100644
--- a/apps/mina-sidor-fa/src/app/pages/deltagare/pages/deltagare-report/pages/deltagare-avvikelse/deltagare-avvikelse.component.ts
+++ b/apps/mina-sidor-fa/src/app/pages/deltagare/pages/deltagare-report/pages/deltagare-avvikelse/deltagare-avvikelse.component.ts
@@ -15,11 +15,14 @@ import { FranvaroAlternativ } from '@msfa-models/franvaro-alternativ.model';
 import { OrsaksKoderAvvikelse } from '@msfa-models/orsaks-koder-avvikelse.model';
 import { KandaAvvikelseKoder, OrsaksKoderFranvaro } from '@msfa-models/orsaks-koder-franvaro.model';
 import {
+  OrsakerIsRequiredCheck,
   AnnanKandOrsakeIsRequiredCheck,
-  DateIsRequiredCheck, DescriptionIsRequiredCheck,
+  DescriptionIsRequiredCheck,
+  DateIsRequiredCheck,
+  DayOrPartOfDayIsRequiredCheck,
+  StartTimeIsRequiredCheck,
   EndTimeIsRequiredCheck,
-  MotiveringIsRequiredCheck,
-  OrsakerIsRequiredCheck, StartTimeIsRequiredCheck
+  MotiveringIsRequiredCheck
 } from '@msfa-utils/validators/avvikelse-form-validator';
 import { RequiredValidator } from '@msfa-utils/validators/required.validator';
 import { Observable } from 'rxjs';
@@ -101,6 +104,7 @@ export class DeltagareAvvikelseComponent implements OnInit {
           OrsakerIsRequiredCheck.CheckIfRequired('orsakerFormGroup', 'orsaker'),
           AnnanKandOrsakeIsRequiredCheck.CheckIfRequired('orsakerFormGroup', 'andraKandaOrsaker'),
           DateIsRequiredCheck.CheckIfRequired('date'),
+          DayOrPartOfDayIsRequiredCheck.CheckIfRequired('dayOrPartOfDay'),
           StartTimeIsRequiredCheck.CheckIfRequired('timepickerFormGroup', 'startTime'),
           EndTimeIsRequiredCheck.CheckIfRequired('timepickerFormGroup', 'endTime'),
           MotiveringIsRequiredCheck.CheckIfRequired('fraga1')
diff --git a/apps/mina-sidor-fa/src/app/shared/utils/validators/avvikelse-form-validator.ts b/apps/mina-sidor-fa/src/app/shared/utils/validators/avvikelse-form-validator.ts
index 370d7ce..8e550e6 100644
--- a/apps/mina-sidor-fa/src/app/shared/utils/validators/avvikelse-form-validator.ts
+++ b/apps/mina-sidor-fa/src/app/shared/utils/validators/avvikelse-form-validator.ts
@@ -35,6 +35,19 @@ export class OrsakerIsRequiredCheck {
   }
 }
 
+export class DayOrPartOfDayIsRequiredCheck {
+  static CheckIfRequired(
+    controlToValidateName: string,
+  ): ValidatorFn {
+    return (fg: AbstractControl): { [key: string]: boolean } => {
+      const valueOfControlToValidate = fg?.get(controlToValidateName)?.value as string;
+      const isRequired = valueOfControlToValidate === null && fg?.get('alternative').value === Alternative.FRANVARO;
+
+      return isRequired ? { dayOrPartOfDayIsRequired: true } : null;
+    };
+  }
+}
+
 export class AnnanKandOrsakeIsRequiredCheck {
   static CheckIfRequired(
     nestedFormGroupName: string,