number">6.1.4</span> The approver’s responsibilities</a></li>
  </ul></li>
  <li><a href="#assurance-activities" id="toc-assurance-activities" class="nav-link" data-scroll-target="#assurance-activities"><span class="header-section-number">6.2</span> Assurance activities</a></li>
  <li><a href="#documentation" id="toc-documentation" class="nav-link" data-scroll-target="#documentation"><span class="header-section-number">6.3</span> Documentation</a></li>
  <li><a href="#treatment-of-uncertainty" id="toc-tre