My Reading on ASQ CQA HB Part I-IA~IE-s

Part IE1
Security
Companies in certain highly sensitive industries, such as those involved in
national defense, may require that auditors have or obtain security
clearances. This requirement should be determined well in advance of the
audit to permit sufficient time for processing the request. Without the proper
security clearance, an auditor may be restricted from certain areas of a
company.
https://www.theneweconomy.com/business/chinese-merger-set-to-create-worlds-second-largest-steelmaker
Charlie Chong/ Fion Zhang