3.1.3.2.1 Amendments to the electronic AIP (AIP AMDT) are published on the internet.

3.1.3.2.2 There are two types of Amendments:

1. Electronic regular AIP Amendments (AIP AMDT), containing permanent information which is not of operational significance for the safe conduct of a flight and does not require an advanced notification to the users. These electronic AIP AMDT are issued in accordance with the established regular intervals (GEN 0.1.4.2) and incorporate permanent changes into the electronic AIP at the indicated publication date;

2. Electronic AIRAC AIP amendments (AIRAC AIP AMDT) containing permanent information which is of operational significance for the safe conduct of a flight and requires an advanced notification to the users. Electronic AIRAC AIP amendments are issued in accordance with the AIRAC system, identified by the acronym AIRAC at the indicated AIRAC effective date.

A brief description of the subjects affected by the amendment is given on the electronic AIP Amendment cover sheet. Each electronic AIP amendment cover sheet includes references to the serial number of those elements, if any, of the Aeronautical Information Products which have been incorporated in the electronic AIP by the amendment and are consequently cancelled. Each AIP AMDT and each AIRAC AIP AMDT will be allocated separate two digit serial numbers which are consecutive in line with the AIRAC cycle. This will be followed by a four digit number to denote the year of issue or validity, e.g. AIP AMDT 01 / 2022; AIRAC AIP AMDT 01 / 2022. This new system will supersede the old system (which used a continuous sequence of numbers).

3.1.3.2.3 For further details refer to the electronic AIP Republic of Cabo Verde version on the internet and its Help section.

3.1.3.3.1 Temporary changes of long duration (three months and longer) and information of short duration which consists of extensive text and / or graphics, supplementing the permanent information contained in the electronic AIP are published as electronic AIP Supplements (AIP SUP). Operationally significant temporary changes to the electronic AIP are published in accordance with the AIRAC system and its established effective dates are identified clearly by the acronym AIRAC.

3.1.3.3.2 Electronic AIP Supplements are separated by information subject (General - GEN, En-route - ENR and Aerodromes - AD). In a similar manner to AIP AMDT, each Supplement (regular or AIRAC) is allocated a serial number which is consecutive and based on the calendar year, i. e. AIRAC AIP SUP 01 / 2022.

3.1.3.3.3 Electronic AIP Supplements are kept in the AIP as long as all or some of their contents remain valid. The period of validity of information contained in the electronic AIP Supplement will normally be given in the supplement itself. Alternatively, NOTAM may be used to indicate changes to the period of validity or cancellation of the supplement.

3.1.3.3.4 The checklist of electronic AIP Supplements currently in force is issued additionally by the medium of the monthly printed plain language summary of NOTAM in force.

3.1.3.3.5 Electronic AIP Supplements are placed on the desktop of the electronic AIP as a separate subject item under the electronic AIP Tabulator "SUP". For further details refer to the electronic AIP Cabo Verde version on the internet and its Help section.

3.1.3.4.1 The electronic Aeronautical Information Circulars (AIC) contain information of long - term forecast of any major change in legislation, regulations procedures or facilities; purely explanatory or advisory nature liable to affect flight safety; and information or notification of an explanatory or advisory nature concerning technical, legislative or purely administrative matters. AICs are divided in accordance with subjects and their affects and are issued in two series (A and N). AIC Series A contains information affecting international civil aviation and is given international distribution, while AIC Series N contains information affecting national aviation only and is given national distribution.

3.1.3.4.2 Each electronic AIC is numbered consecutively on a calendar year basis. The year, indicated by four digits, is a part of serial number of the AIC, e.g. AIC 1 / 2022. A checklist of AIC currently in force is issued as an AIC once a year.

3.1.3.4.3 Electronic AIC are placed on the desktop of the electronic AIP accordingly as a separate item under the eAIP Tabulator "AIC". For further details refer to the electronic AIP Cabo Verde version on the internet and its Help section.

3.1.3.5.1 A NOTAM is a notice distributed by means of Aeronautical Fixed Telecommunication Network (AFTN) containing information concerning the establishment, condition or change in any aeronautical facility, service, procedure or hazard, the timely knowledge of which is essential to personnel concerned with flight operations.

3.1.3.5.2 A NOTAM shall be originated and issued promptly whenever the information to be disseminated is of a temporary nature and of short duration or when operationally significant permanent changes, or temporary changes of long duration are made at short notice.

3.1.3.5.3 When an AIP AMDT or an AIP SUP is published in accordance with the AIRAC procedures, a “TRIGGER” NOTAM shall be originated giving a brief description of the contents, the effective date, and the reference number to the AIP AMDT or AIP SUP.

3.1.3.5.4 The basic purpose of a NOTAM is the dissemination of information in advance of the event to which it relates, except in the case of unserviceability which cannot be foreseen.

3.1.3.5.5 A NOTAM checklist shall be issued via the AFTN for each month on the first day of the following month containing a numerical list of valid NOTAM in force, and referring to the latest AIP AMDT, AIP SUP and AIC issued.

3.1.3.5.6 A monthly printed Plain Language list of valid NOTAM including a reference to the latest AIP AMDT, checklist of AIP SUP and AIC issued, shall be prepared with a minimum delay and forwarded by the most expeditious means to recipients of the Aeronautical Information Products.

3.1.3.5.7 NOTAMs are originated and issued for SAL OCEANIC FIRTAIRSPACE;TXT_NAME;414SAL OCENIC FIR / UIRTAIRSPACE;TXT_NAME;415 and are distributed in two series identified by the letter A and S.

Series A - International distribution: General rules, navigation warnings, en-route navigation and communication facilities, airspace reservations and navigation warnings, information concerning international aerodromes.

Series S (SNOWTAM): Information providing a surface condition report notifying the presence or cessation of hazardous conditions due to snow, ice, slush, frost, standing water or water associated with snow, slush, ice or frost on the movement area. SNOWTAMs are prepared in accordance with ICAO Doc 10066 (PANS - AIM) Appendix 4 and are issued for all international aerodromes.

3.1.3.6.1 A checklist of valid NOTAMs is issued monthly via AFS. The checklist is followed by a printed list of valid NOTAMs distributed by mail to all recipients of the Integrated Aeronautical Information Package. It contains a plain language (in English) presentation of the valid NOTAM and information about the number of the latest issued AIP AMDT, AIRAC AIP AMDT, AIP SUP and AIC as well as the numbers of the elements issued under the AIRAC that will become effective or, if none, the NIL AIRAC notification.

3.1.3.6.2 Checklists and lists of valid NOTAMs are administrative material without operational significance. Their purpose is to help recipients of the Aeronautical Information Products verifying the continuity and validity of the information they handle.

3.1.3.7.1 This information is supplied free of charges to foreign Aeronautical Authorities and Aeronautical Information Services on a reciprocal basis. Nevertheless a registration is necessary to access the eAIP. Instructions to obtain access are given on the website.

3.1.3.7.2 Aeronautical Publications and the conditions of subscription, and respective purchase prices are published every year in an International AIC.

3.1.3.7.3 Orders, cancellations, claims and payment of subscriptions of all international aeronautical publications shall be addressed to: