A VTS provider may on their own initiative apply to have amendments made to their instrument of authority.  For example:

• to change the boundaries of the VTS area
• to change details in the instrument of authority that are no longer accurate.

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Assessment of the amendments

We will assess the proposed amendments against the following criteria:

• The amendment is consistent with the objective of improving the safety and efficiency of vessel traffic and protection of the environment; and
• The applicant can continue to meet the responsibilities of a VTS provider that are mentioned in paragraph 5.3 of IMO Resolution A.1158(32) Guidelines for Vessel Traffic Services
• the applicant can meet the responsibilities of a VTS provider that are mentioned in the normative provisions of IALA Standards 1010, 1040, 1050 and 1070.