What is in a Pre-flight Information Bulletin

A Pre-flight Information Bulletin, or PIB, is the packaged NOTAM briefing for a flight: all the temporary changes and hazards affecting your departure, route, destination, and alternates, gathered in one place so you can read them before you go.

This is general educational information, not operational, legal, or regulatory advice. Rules differ by authority and change over time. Always verify against current official sources and follow your operator's approved procedures.

What the PIB is

The PIB is the standard way NOTAM information is presented to a crew before flight. It is defined in ICAO Annex 15 (Aeronautical Information Services), and it is produced by national and regional aeronautical information services, such as the EUROCONTROL European AIS Database (EAD) and the UK NATS AIS in Europe, and the equivalent services elsewhere.

The key idea is that a PIB is selective and temporary. It does not repeat the permanent information in the Aeronautical Information Publication (AIP), which tells you how an aerodrome, airway, or procedure normally is. Instead it carries the NOTAMs, the notices that change, suspend, or warn about that permanent information for a defined window. Read the AIP to know the normal state of things; read the PIB to know what is different today.

What a PIB contains

A PIB gathers the NOTAMs that match your flight, typically organised by location and by the same scope categories used in any NOTAM list:

• Aerodrome NOTAMs for your departure, destination, and alternates: runway and taxiway closures, lighting, navigation-aid outages, changes to services.
• En-route NOTAMs along your track: airway changes, navigation-aid and communication outages.
• Navigation warnings near your route: temporary restricted and danger areas, military activity, hazards.
• Special notices where relevant, such as a SNOWTAM reporting runway contamination by snow or ice, or an ASHTAM reporting volcanic ash activity.

Because the same NOTAMs can be sorted in different ways, AIS services offer several types of bulletin: an aerodrome PIB for a single airfield, an area PIB for a region or flight information region, and a route or narrow-route briefing that follows a corridor along your planned track. The narrow-route briefing is usually the most efficient for a point-to-point flight, because it filters out NOTAMs far from where you are actually going.

A worked structure

A route PIB for a short IFR flight might lay out, in order:

1. A header with the requested route, the validity window, and the time the bulletin was generated.
2. The departure aerodrome NOTAMs, grouped under its ICAO indicator.
3. The en-route NOTAMs for the flight information regions you cross.
4. The destination aerodrome NOTAMs.
5. The alternate aerodrome NOTAMs.
6. Any navigation warnings and special notices for the corridor.

Each entry is a full NOTAM in the ICAO format, with its number, Q-line, validity, and plain-language text. Reading a PIB well, then, is the same skill as reading any NOTAM, applied at scale: triage by category and time window, and read the high-impact items first. (See our guides to NOTAM categories and time windows and decoding NOTAM Q-codes.)

The snapshot problem

The single most important thing to understand about a PIB is that it is a snapshot. It is current as of the moment it is generated, and not a moment later. NOTAMs are issued continuously, so a bulletin pulled the evening before a flight can be missing a runway closure that was published overnight. The generation time in the header is there for exactly this reason: it tells you how old the picture is. Regenerate or refresh the PIB close to departure, and treat the official AIS source as the record. This is a specific case of a general truth about every briefing product, which we cover in how aviation data goes stale.

Self-briefing responsibly

For most of aviation's history, a pilot got a briefing by telephoning a briefer who read out the relevant NOTAMs and weather. Today the same information comes through self-service AIS portals, and the PIB is something you generate yourself. That convenience comes with a responsibility: it is now on you to pull a complete picture, not to rely on someone else to decide what you needed.

The rules put that responsibility in plain terms. In the United States, 14 CFR 91.103 requires the pilot in command, before beginning a flight, to become familiar with all available information concerning that flight. For a flight not in the vicinity of an airport, and for any IFR flight, that explicitly includes the weather reports and forecasts, the fuel required, the alternatives available if the planned flight cannot be completed, any known traffic delays, and the runway lengths and take-off and landing distance data. Other authorities place an equivalent duty on the commander.

A complete self-brief, then, is more than pulling a NOTAM bulletin. It pulls together:

• The weather: METARs, TAFs, and the relevant SIGMETs, AIRMETs, and charts for departure, route, destination, and alternates.
• The NOTAMs, as a route or area PIB covering the same set of aerodromes and the airspace between.
• The fuel and performance picture, including runway lengths and the distances your aircraft needs.
• The alternates, chosen and checked, with the fuel to reach them.

The discipline that ties it together is to gather it as a set, close to departure, and keep a record of what you briefed. Because the AIS portal hands you the raw material rather than a curated summary, the judgement about completeness is yours, which is why the regulation frames it as becoming familiar with everything available, not merely with whatever the system happened to show first. In short, the convenience of self-briefing transfers the responsibility for completeness onto the pilot, and a thorough, documented self-brief is how you meet it.

Finding the one item that matters

The hardest part of a long bulletin is not reading it but not missing the single item that matters among the routine ones. A worked illustration: a route PIB for a short IFR flight runs to forty NOTAMs. Thirty-five are unlit cranes, grass cutting, and minor lighting notes. Buried among them are a destination runway closure for the hour of your arrival, a navigation-aid outage on your planned approach, and a temporary danger area activated along your track. Those three are the flight; the rest is noise.

The defence is a disciplined order of reading, applied to the whole bulletin:

1. Filter by your geography: your departure, destination, and alternates, your track, and the altitudes you will use, discarding what is far from all of them.
2. Filter by your time: set aside NOTAMs whose validity window does not overlap your flight, while keeping any marked EST in view because their end is only estimated.
3. Read the high-impact categories first: runway and approach changes, airspace activations, and navigation-aid outages, before obstacle and lighting notices.
4. Re-check close to departure, because a new NOTAM can appear after you generated the bulletin.

Run that sequence and the three items that matter rise to the top, while the cranes and the grass cutting fall away. The skill is the same whether you read a printed PIB or a screen of NOTAMs in an app: structure the reading so the important notice cannot hide, rather than reading top to bottom and hoping to notice it. A briefing tool can mechanise the first two filters, narrowing a long bulletin to your route and your time at a tap, but the judgement of what counts as high-impact, and the responsibility to confirm the picture is complete against the official source, stay with the pilot. The tool sorts; you decide.

Common pitfalls

• Treating the PIB as permanent. It is the temporary layer over the AIP, not a replacement for it.
• Forgetting it is a snapshot. Check the generation time and refresh before departure.
• Reading an area bulletin when a route one would do. A narrow-route briefing filters out the noise far from your track.
• Skimming past special notices. A SNOWTAM or ASHTAM can change the whole plan.
• Assuming completeness. A PIB reflects what was in the system when it was built; confirm against the official source.

In Pilot EFB

Pilot EFB pulls the NOTAMs for the airports and route you have set up and assembles them by aerodrome and area, so you have a personal, organised view much like a route PIB to work through. It records when the data was fetched, keeps the full raw text of every NOTAM with keywords highlighted, and never interprets them for you. It is a planning and organising aid, not an official aeronautical information service: the authoritative PIB is the one from your national or regional AIS, and a fresh pull needs a connection, while NOTAMs you have already saved stay readable offline. Pilot EFB is offline-first and is not a certified Electronic Flight Bag.