diff --git a/lib/content-services/src/lib/breadcrumb/dropdown-breadcrumb.component.html b/lib/content-services/src/lib/breadcrumb/dropdown-breadcrumb.component.html
index ac88ccd77d..221e46693c 100644
--- a/lib/content-services/src/lib/breadcrumb/dropdown-breadcrumb.component.html
+++ b/lib/content-services/src/lib/breadcrumb/dropdown-breadcrumb.component.html
@@ -3,6 +3,7 @@
      [attr.aria-label]="'BREADCRUMB.ARIA-LABEL.BREADCRUMB' | translate">
 
     <button
+        id="dropdown-breadcrumb-button"
         [tabindex]="hasPreviousNodes() ? 0 : -1"
         class="adf-dropdown-breadcrumb-trigger"
         (click)="open()"
@@ -18,7 +19,8 @@
             #dropdown
             *ngIf="hasPreviousNodes()"
             tabindex="-1"
-            data-automation-id="dropdown-breadcrumb-path">
+            data-automation-id="dropdown-breadcrumb-path"
+            aria-labelledby="dropdown-breadcrumb-button">
 
             <mat-option
                 *ngFor="let node of previousNodes;"
diff --git a/lib/content-services/src/lib/content-metadata/components/content-metadata/content-metadata.component.html b/lib/content-services/src/lib/content-metadata/components/content-metadata/content-metadata.component.html
index 20a10afa3b..73faf9cfd8 100644
--- a/lib/content-services/src/lib/content-metadata/components/content-metadata/content-metadata.component.html
+++ b/lib/content-services/src/lib/content-metadata/components/content-metadata/content-metadata.component.html
@@ -47,7 +47,7 @@
                 </div>
             </ng-container>
             <ng-template #loading>
-                <mat-progress-bar mode="indeterminate" [attr.aria-label]="'CORE.METADATA.BASIC.DATA_LOADING' | translate">
+                <mat-progress-bar mode="indeterminate" [attr.aria-label]="'DATA_LOADING' | translate">
                 </mat-progress-bar>
             </ng-template>
         </ng-container>
diff --git a/lib/content-services/src/lib/content-node-selector/content-node-selector-panel.component.html b/lib/content-services/src/lib/content-node-selector/content-node-selector-panel.component.html
index 6559d14645..d2b1594b2c 100644
--- a/lib/content-services/src/lib/content-node-selector/content-node-selector-panel.component.html
+++ b/lib/content-services/src/lib/content-node-selector/content-node-selector-panel.component.html
@@ -45,7 +45,7 @@
     <adf-toolbar>
         <adf-toolbar-title>
             <ng-container *ngIf="!showBreadcrumbs()">
-                <span role="heading" aria-level="3" class="adf-search-results-label">{{ 'NODE_SELECTOR.SEARCH_RESULTS' | translate }}</span>
+                <h2 class="adf-search-results-label">{{ 'NODE_SELECTOR.SEARCH_RESULTS' | translate }}</h2>
             </ng-container>
             <adf-dropdown-breadcrumb *ngIf="showBreadcrumbs()"
                 class="adf-content-node-selector-content-breadcrumb"
@@ -86,10 +86,11 @@
             (folderChange)="onFolderChange($event)"
             (ready)="onFolderLoaded($event)"
             (nodeSelected)="onCurrentSelection($event)"
+            [class.adf-content-node-selector-content-list-empty]="emptyList"
             data-automation-id="content-node-selector-document-list">
 
             <adf-custom-empty-content-template>
-                <div>{{ 'NODE_SELECTOR.NO_RESULTS' | translate }}</div>
+                <div aria-live="polite">{{ 'NODE_SELECTOR.NO_RESULTS' | translate }}</div>
             </adf-custom-empty-content-template>
 
             <data-columns>
diff --git a/lib/content-services/src/lib/content-node-selector/content-node-selector-panel.component.scss b/lib/content-services/src/lib/content-node-selector/content-node-selector-panel.component.scss
index 18f79d2168..aa2349a186 100644
--- a/lib/content-services/src/lib/content-node-selector/content-node-selector-panel.component.scss
+++ b/lib/content-services/src/lib/content-node-selector/content-node-selector-panel.component.scss
@@ -1,7 +1,7 @@
 /* stylelint-disable no-descending-specificity */
 $content-node-selector-thumbnail-width: 35px !default;
 
-.adf-search-results-label {
+h2.adf-search-results-label {
     flex: 1;
     font-weight: 600;
     font-size: var(--theme-body-1-font-size);
@@ -95,6 +95,13 @@ $content-node-selector-thumbnail-width: 35px !default;
             overflow: auto;
             border: 1px solid var(--theme-border-color);
             border-top: 0;
+            position: relative;
+
+            &-empty + adf-infinite-pagination {
+                position: absolute;
+                bottom: 0;
+                width: 100%;
+            }
 
             .adf-highlight {
                 color: var(--theme-primary-color);
diff --git a/lib/content-services/src/lib/content-node-selector/content-node-selector-panel.component.ts b/lib/content-services/src/lib/content-node-selector/content-node-selector-panel.component.ts
index 2e4cf89110..87234152a8 100644
--- a/lib/content-services/src/lib/content-node-selector/content-node-selector-panel.component.ts
+++ b/lib/content-services/src/lib/content-node-selector/content-node-selector-panel.component.ts
@@ -80,6 +80,7 @@ export class ContentNodeSelectorPanelComponent implements OnInit, OnDestroy {
     private showSiteList = true;
     private showSearchField = true;
     private showCounter = false;
+    private _emptyList = true;
 
     /** If true will restrict the search and breadcrumbs to the currentFolderId */
     @Input()
@@ -295,6 +296,10 @@ export class ContentNodeSelectorPanelComponent implements OnInit, OnDestroy {
         return this._chosenNode;
     }
 
+    get emptyList(): boolean {
+        return this._emptyList;
+    }
+
     getSelectedCount(): number {
         return this.chosenNode?.length || 0;
     }
@@ -567,6 +572,9 @@ export class ContentNodeSelectorPanelComponent implements OnInit, OnDestroy {
      * Attempts to set the currently loaded node
      */
     onFolderLoaded(nodePaging: NodePaging): void {
+        setTimeout(() => {
+            this._emptyList = !this.documentList.data.getRows().length;
+        });
         this.updatePaginationAfterRowFilter(nodePaging);
         if (!this.showingSearchResults) {
             this.attemptNodeSelection(this.documentList.folderNode);
diff --git a/lib/content-services/src/lib/content-node-selector/content-node-selector.component.html b/lib/content-services/src/lib/content-node-selector/content-node-selector.component.html
index 7820f42cb7..8f17bb23c7 100644
--- a/lib/content-services/src/lib/content-node-selector/content-node-selector.component.html
+++ b/lib/content-services/src/lib/content-node-selector/content-node-selector.component.html
@@ -1,9 +1,4 @@
-<header
-    mat-dialog-title
-    data-automation-id="content-node-selector-title">
-    <h2>{{title}}</h2>
-</header>
-
+<h1 mat-dialog-title data-automation-id="content-node-selector-title">{{title}}</h1>
 <mat-tab-group class="adf-content-node-selector-dialog-content"
                mat-align-tabs="start"
                (selectedIndexChange)="onTabSelectionChange($event)"
diff --git a/lib/content-services/src/lib/site-dropdown/sites-dropdown.component.html b/lib/content-services/src/lib/site-dropdown/sites-dropdown.component.html
index ed95b31ae7..4ba67d75a7 100644
--- a/lib/content-services/src/lib/site-dropdown/sites-dropdown.component.html
+++ b/lib/content-services/src/lib/site-dropdown/sites-dropdown.component.html
@@ -8,9 +8,11 @@
             class="adf-site-dropdown-list-element"
             id="site-dropdown"
             placeholder="{{placeholder | translate}}"
+            [aria-label]="ariaLabel"
             floatPlaceholder="never"
             [(value)]="selected"
-            (selectionChange)="selectedSite($event)">
+            (selectionChange)="selectedSite($event)"
+            role="listbox">
             <mat-option *ngFor="let site of siteList?.list.entries;" [value]="site">
                 {{ site.entry.title | translate}}
             </mat-option>
diff --git a/lib/content-services/src/lib/site-dropdown/sites-dropdown.component.ts b/lib/content-services/src/lib/site-dropdown/sites-dropdown.component.ts
index 1a983d6713..d1630274bf 100644
--- a/lib/content-services/src/lib/site-dropdown/sites-dropdown.component.ts
+++ b/lib/content-services/src/lib/site-dropdown/sites-dropdown.component.ts
@@ -19,6 +19,8 @@ import { Component, EventEmitter, Input, OnInit, Output, ViewEncapsulation } fro
 import { SitesService, LogService, InfiniteSelectScrollDirective } from '@alfresco/adf-core';
 import { SitePaging, SiteEntry } from '@alfresco/js-api';
 import { MatSelectChange } from '@angular/material/select';
+import {LiveAnnouncer} from '@angular/cdk/a11y';
+import {TranslateService} from '@ngx-translate/core';
 
 /* eslint-disable no-shadow */
 /* eslint-disable @typescript-eslint/naming-convention */
@@ -74,20 +76,28 @@ export class DropdownSitesComponent implements OnInit {
 
     private loading = true;
     private skipCount = 0;
+    private _ariaLabel = '';
 
     selected: SiteEntry = null;
     MY_FILES_VALUE = '-my-';
 
     constructor(private sitesService: SitesService,
-                private logService: LogService) {
+                private logService: LogService,
+                private liveAnnouncer: LiveAnnouncer,
+                private translateService: TranslateService) {
     }
 
     ngOnInit() {
+        this.updateAriaLabel(this.selected);
         if (!this.siteList) {
             this.loadSiteList();
         }
     }
 
+    get ariaLabel(): string {
+        return this._ariaLabel;
+    }
+
     loadAllOnScroll() {
         if (this.isInfiniteScrollingEnabled()) {
             this.loading = true;
@@ -96,6 +106,11 @@ export class DropdownSitesComponent implements OnInit {
     }
 
     selectedSite(event: MatSelectChange) {
+        this.updateAriaLabel(event.value);
+        this.liveAnnouncer.announce(this.translateService.instant('ADF_DROPDOWN.SELECTION_ARIA_LABEL', {
+            placeholder: this.translateService.instant(this.placeholder),
+            selectedOption: this.translateService.instant(event.value.entry.title)
+        }));
         this.change.emit(event.value);
     }
 
@@ -140,6 +155,7 @@ export class DropdownSitesComponent implements OnInit {
                 }
 
                 this.selected = this.siteList.list.entries.find((site: SiteEntry) => site.entry.id === this.value);
+                this.updateAriaLabel(this.selected);
 
                 if (this.value && !this.selected && this.siteListHasMoreItems()) {
                     this.loadSiteList();
@@ -174,4 +190,8 @@ export class DropdownSitesComponent implements OnInit {
         return site.entry.visibility === 'PUBLIC' ||
             !!site.relations.members.list.entries.find((member) => member.entry.id.toLowerCase() === loggedUserName.toLowerCase());
     }
+
+    private updateAriaLabel(site: SiteEntry): void {
+        this._ariaLabel = `${this.translateService.instant(this.placeholder)} ${site ? this.translateService.instant(site.entry.title) : ''}`;
+    }
 }
diff --git a/lib/core/src/lib/i18n/en.json b/lib/core/src/lib/i18n/en.json
index c14b5b013a..f2fc0adc3e 100644
--- a/lib/core/src/lib/i18n/en.json
+++ b/lib/core/src/lib/i18n/en.json
@@ -20,6 +20,7 @@
   "CLAIM": "CLAIM",
   "UNCLAIM": "RELEASE",
   "START PROCESS": "START PROCESS",
+  "DATA_LOADING": "Data is loading",
   "NOTIFICATIONS": {
     "NO_MESSAGE": "You have no notifications at this time.",
     "TITLE": "Notifications",
@@ -219,8 +220,7 @@
         "CREATED_DATE": "Created Date",
         "MODIFIER": "Modifier",
         "MODIFIED_DATE": "Modified Date",
-        "CONTENT_TYPE": "Content Type",
-        "DATA_LOADING": "Data is loading"
+        "CONTENT_TYPE": "Content Type"
       },
       "CONTENT_TYPE": {
         "DIALOG": {
@@ -581,6 +581,7 @@
     }
   },
   "ADF_DROPDOWN": {
-    "LOADING": "Loading..."
+    "LOADING": "Loading...",
+    "SELECTION_ARIA_LABEL": "{{placeholder}} listbox {{selectedOption}}"
   }
 }
diff --git a/lib/core/src/lib/pagination/infinite-pagination.component.html b/lib/core/src/lib/pagination/infinite-pagination.component.html
index 8cff374c12..271e5c16e8 100644
--- a/lib/core/src/lib/pagination/infinite-pagination.component.html
+++ b/lib/core/src/lib/pagination/infinite-pagination.component.html
@@ -11,5 +11,6 @@
     <mat-progress-bar *ngIf="isLoading"
         mode="indeterminate"
         class="adf-infinite-pagination-spinner"
-        data-automation-id="adf-infinite-pagination-spinner"></mat-progress-bar>
+        data-automation-id="adf-infinite-pagination-spinner"
+        [attr.aria-label]="'DATA_LOADING' | translate"></mat-progress-bar>
 </div>
diff --git a/lib/testing/src/lib/protractor/content-services/dialog/content-node-selector-dialog.page.ts b/lib/testing/src/lib/protractor/content-services/dialog/content-node-selector-dialog.page.ts
index b314d9d500..5631e86d95 100644
--- a/lib/testing/src/lib/protractor/content-services/dialog/content-node-selector-dialog.page.ts
+++ b/lib/testing/src/lib/protractor/content-services/dialog/content-node-selector-dialog.page.ts
@@ -29,7 +29,7 @@ import { TestElement } from '../../core/public-api';
 
 export class ContentNodeSelectorDialogPage {
     dialog = $(`adf-content-node-selector`);
-    header = this.dialog.$(`header[data-automation-id='content-node-selector-title']`);
+    header = this.dialog.$(`h1[data-automation-id='content-node-selector-title']`);
     searchInputElement = this.dialog.$(`input[data-automation-id='content-node-selector-search-input']`);
     searchLabel = this.dialog.$('.adf-content-node-selector-content-input .mat-form-field-label');
     selectedRow = this.dialog.$(`adf-datatable-row[class*="adf-is-selected"]`);