# Council Decision (EU) 2019/425 of 12 March 2019 on the position to be taken on behalf of the European Union within the Joint Committee established by the Agreement between the European Union and the Kingdom of Norway on administrative cooperation, combating fraud and recovery of claims in the field of value added tax, Division 4.3.3.1: Availability Management


The main service that the Service Provider has to provide is to ensure that the CCN/CSI system is ‘up and running’ at the required availability level.
The Service Provider ensures that all CCN/CSI sites are interconnected through a Wide Area Network (WAN) offering the necessary resilience and capacity to ensure the proper functioning of critical business applications using the CCN/CSI infrastructure and services.
The availability management service covers the following items:
global access in all connected NAs;
the provision of the local loop (+ a backup line) between the WAN local access point (PoP) and the National Administration premises;
the Customer Premises Router (CPR) installation, configuration, and maintenance;
the Security Device (i.e. SSG encryption-firewall box) installation and maintenance;
communication gateways located on the DMZ, at every local site (i.e. CCN Gateways);
the central CCN Mail III system.
The Service Provider also provides statistical information on the availability collected under operational circumstances and a monitoring service, both for pro-active problem tracking and statistical purposes.

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Source: https://www.legislation.gov.uk/eudn/2019/425/schedule/ANNEX II/division/4./division/4.3./division/4.3.3./division/4.3.3.1. (the official version)
Page: https://openlegislation.uk/eu-decision-2019-425/schedule-ANNEX II/division-4./division-4.3./division-4.3.3./division-4.3.3.1.
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.