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7. Vector Chart Material
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7.6.4 Managing permits from an RENC
Permits are used to control the right to use a chart in the chart radar. A permit in an RENC ENC service is connected
to an edition of a chart. Permits are issued in different types:
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Subscription permit: This type of permit includes updates for subsequent 12 months.
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One-Off permit: This type of permit includes only updates up to the issue date of the permit.
The expiry date of a permit controls the loading of base charts and their updates to the chart radar. The chart radar
will warn you when you are loading charts or updates which are issued less than 30 days before the expiration date
of a permit. If a permit has expired, it is impossible to load a chart or its update which was issued after the expiration
date of the permit. The user has a right to view a chart forever, but it will not complete the requirements for having
up-to-date charts. To view the Chart Permits window, open the Chart menu and choose Chart Permits.
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Description of the chart permits window
1. Public Key lets you view a public key or load a new one.
2. Load File enables downloading from an RENC when you receive permits from that RENC.
3. Backup makes a back-up copy of permits.
4. The Edt (Edition) field displays edition number of a chart to which the permit is valid. Note that when a new
edition of a chart is issued a new permit is required. It is possible to have permits for different editions of the
same chart.
5. The Type field shows type of permit held for a chart: S, Subscription or O, One-off.
6. The Expires field shows the expiration date of permits. All subscription-type permits will expire on the same
date.