172.01.1 Applicability
172.01.2 Providing of an ATS at own initiative
172.01.3 Allocation of air traffic services
172.01.4 Requirement for ATSU approval
172.01.5 Display of ATSU approval
172.01.6 Safety inspections and audits
172.01.7 Register of approvals
172.01.8 Substitute ATS provider
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