What Is a Terminal Area Chart? The VFR Pilot’s Guide to TACs

A Terminal Area Chart (TAC) is a VFR aeronautical chart published by the FAA at a 1:250,000 scale that shows the airspace around the busiest airports — primarily Class B airspace — in far greater detail than a Sectional Chart. It zooms in so you can read the rings, altitudes, frequencies, and landmarks you need to fly safely near a major terminal area. Think of it as the magnifying glass for the most congested airspace in the country. Where a Sectional gives you the wide view, a TAC gives you the close-up exactly where you need it most.

If you’ve ever looked at the airspace around a city like Los Angeles, Chicago, or Atlanta on a Sectional and thought “there’s no way I can read all that,” the Terminal Area Chart is the answer. Let’s break down what a TAC is, how it’s different from a Sectional, and how to actually use one.

What is a Terminal Area Chart?

A Terminal Area Chart (TAC) is a VFR aeronautical chart published by the FAA at a scale of 1:250,000. It covers the airspace surrounding a single busy terminal area — almost always a Class B airspace area built around a major airport. Because it’s drawn at twice the scale of a Sectional Chart, everything on it appears larger and easier to read, which is exactly what you want when the airspace is complicated.

The whole reason a TAC exists is clutter. Around a place like Dallas-Fort Worth or Denver, a Sectional Chart has to cram so much information into a small space that the airspace rings, frequencies, and obstacles start overlapping each other. The TAC takes that same area and spreads it out across a bigger sheet so each piece of information has room to breathe.

You’ll find TACs described in the FAA Aeronautical Chart Users’ Guide and referenced in the Pilot’s Handbook of Aeronautical Knowledge (PHAK, FAA-H-8083-25C) in the navigation chapter. They belong to the same family of VFR charts as the Sectional, with each one zooming in a little further. One point for a student: a TAC is a supplement, not a standalone product. It covers a small slice of the country, so you still carry the Sectional for everything outside that terminal area.

What’s the difference between a TAC and a Sectional Chart?

The core difference is scale and coverage. A Sectional Chart is drawn at 1:500,000 and covers a large region, while a Terminal Area Chart is drawn at 1:250,000 and covers only the airspace around one major airport. That means a TAC shows about twice the visual detail of a Sectional, but over a much smaller geographic area. You trade coverage for clarity.

Scale is worth understanding plainly. On a 1:500,000 Sectional, one inch on the chart equals 500,000 inches of real-world distance — roughly 6.86 nautical miles per inch. On a 1:250,000 TAC, that same inch covers half the distance, so features are drawn twice as large. The airspace rings, the magenta and blue altitude numbers, and the airport diagrams all become easier to read.

Here’s the side-by-side that matters for a student pilot:

The thing to remember: the TAC doesn’t show you anything the Sectional doesn’t also depict — it just shows the busy part bigger and cleaner. The boundaries, the floors, the ceilings, and the frequencies are the same information, presented so you can actually read them in a bouncing cockpit.

When do you actually need a Terminal Area Chart?

You need a Terminal Area Chart any time you’ll be flying in, around, or under the Class B airspace it covers. A TAC becomes essential when you’re transiting near a major airport, navigating under the shelves of Class B airspace, or flying into a satellite field tucked beneath all those rings. In that environment, the extra detail is how you stay legally clear and situationally aware.

The most common scenario for a new pilot is staying underneath Class B without entering it. Class B airspace is shaped like an upside-down wedding cake, with shelves that step up and outward as you move away from the primary airport. To stay legal beneath a shelf, you have to know its exact floor altitude — and reading those small altitude numbers off a cluttered Sectional is genuinely hard. The TAC makes them obvious.

You’ll also reach for a TAC when you’re flying into the busy airspace with a clearance. Knowing the ring boundaries, the VFR reporting points, and the published frequencies before you key the mic makes you a far calmer, more professional pilot on the radio. And if your training area is nowhere near a Class B, you may never touch a TAC during training — that’s normal — but you’ll still see them on the knowledge test.

How do you read the Class B shelves on a TAC?

Reading Class B shelves comes down to two numbers stacked like a fraction. On a Terminal Area Chart, each Class B segment is marked with a ceiling over a floor — for example, 100/40 means the airspace runs from 4,000 feet MSL up to 10,000 feet MSL. The top number is the ceiling, the bottom is the floor, and both are expressed in hundreds of feet MSL.

So if you see “100/40,” read it as a ceiling of 10,000 feet and a floor of 4,000 feet. To stay legally beneath that shelf without a clearance, you’d keep your altitude below 4,000 feet MSL in that segment. Move to the next ring outward and the floor usually steps up — maybe to 6,000 feet — giving you more room underneath as you get farther from the primary airport.

Class B boundaries on the chart are drawn as solid blue lines, which is one of the symbols worth memorizing cold. The TAC’s larger scale is what makes these stacked numbers readable in flight, where a Sectional would have them crammed against a dozen other features.

A couple of habits that will keep you out of trouble:

• Always identify which segment you’re under, because adjacent shelves can have very different floors.
• Give yourself a buffer. Skimming the bottom of a shelf by a few feet is asking for an inadvertent Class B bust — fly with margin.
• Cross-check the floor against your altimeter setting, since these altitudes are MSL, not AGL.

What other information is packed onto a TAC?

A Terminal Area Chart carries the same categories of information as a Sectional — just enlarged. Beyond the Class B shelves, a TAC shows airports, radio frequencies, VFR reporting points and flyways, navigation aids, obstacles, terrain elevation, and the airspace boundaries for surrounding Class C, D, and E areas. Everything you’d use for pilotage and radio work near a busy airport is right there.

VFR reporting points are especially useful on a TAC. These are named visual landmarks — a stadium, a highway interchange, a distinctive lake — that ATC uses to position traffic. They’re drawn larger and clearer on a TAC, so when a controller says “report over the river bend,” you can actually find it.

You’ll also see the radio frequencies you need: approach control, tower, ATIS, and clearance delivery, printed in boxes near the relevant airspace. Having those laid out cleanly means less heads-down fumbling when you’re already busy flying near big traffic.

And like every VFR chart, a TAC uses a standardized set of symbols for airports, obstacles, terrain, and navaids. The legend on the chart and the FAA Aeronautical Chart Users’ Guide are your reference for decoding every symbol — and that symbol knowledge is exactly what the knowledge test loves to probe.

If you want a clear, beginner-friendly walkthrough of every chart symbol and how the airspace fits together, our free Total Student Pilot course builds that foundation step by step, and the Private Pilot Ground School takes you all the way to checkride-ready chart reading.

A first flight under the Anchorage shelf

I still remember taking a student up toward Anchorage early in my flying-in-Alaska days. She’d done all her training out at a quiet strip with nothing but open terrain and the occasional moose on the runway, so the first time we pointed the Cessna 172 toward real Class B airspace, the Sectional in her lap looked like a plate of spaghetti to her.

We landed, pulled out the Terminal Area Chart for the area, and spread it on the FBO table. The change on her face was the whole lesson. The same airspace that had been an unreadable knot on the Sectional suddenly made sense — she could see each shelf, read each floor, and trace exactly where we could fly underneath without ever needing a clearance.

The next flight, she navigated us right up under the shelf by pilotage, calling out reporting points off the TAC like she’d been doing it for years. That’s the thing about a TAC: it doesn’t teach you anything new, it just makes the hard part legible.

I’ve been in aviation education since 2006 and a CFI since 2017, and this stays true: the pilots who get comfortable near big airspace are the ones who pull out the right chart and slow down. The TAC is built to help you do exactly that.

How often are Terminal Area Charts updated?

Terminal Area Charts follow the standard VFR chart revision cycle. TACs are typically published on a 56-day cycle, the same schedule used for Sectional Charts, and each chart prints an effective date and an expiration date you must check before flight. Airspace, frequencies, and obstacles change, so an outdated chart can put bad information in your hands at the worst moment.

Before any flight that uses a TAC, confirm the chart is current. On a paper chart, the effective date is printed right on the cover panel, along with a note telling you when the next edition takes over. In an electronic flight bag app, the app flags whether your charts are up to date — but the responsibility to verify is still yours as pilot in command.

Even a current chart isn’t the final word. NOTAMs can change airspace and facilities between chart cycles, so checking NOTAMs is part of the same preflight habit. The chart tells you the published picture; NOTAMs tell you what changed since it was printed. Treat the effective date like a fuel check — a small step that keeps you from building decisions on stale information.

PLT Study Guide

The FAA knowledge test tracks topics by PLT (Pilot Learning Statement) codes. For Terminal Area Charts, these are the codes whose official FAA wording actually matches the material — note that a TAC is the close-up companion to the Sectional, so the chart-reading code is shared:

• PLT064 — Interpret information on a Sectional Chart. A Terminal Area Chart uses the same symbology and is read the same way as a Sectional, just enlarged. Be able to extract airspace boundaries, altitudes, frequencies, and landmarks from the chart.
• PLT101 — Recall aeronautical charts: pilotage. Know that a TAC supports pilotage — navigating by reference to visual landmarks and reporting points — which is its primary VFR use near busy airspace.
• PLT040 — Interpret airspace classes: charts/diagrams. A TAC primarily depicts Class B airspace. Be able to read the stacked ceiling/floor numbers and identify the shelves of an inverted-wedding-cake Class B.
• PLT484 — Recall symbols: chart/navigation. Know the standardized VFR chart symbols — solid blue Class B boundaries, airport symbols, VFR reporting points, obstacles — that appear on both the Sectional and the TAC.

A study note on the hints you may see elsewhere: PLT100 (“aeronautical charts — IFR En Route Low Altitude”) does not apply here, because a TAC is a VFR chart, not an IFR en route chart. Don’t let that one trip you up.

Frequently Asked Questions

FROM CHRIS

When you can pick up a Terminal Area Chart and read the airspace like a map of your neighborhood, flying near big airports stops being intimidating and starts being routine. That’s the whole goal — not just passing the knowledge test, but being genuinely ready to fly toward a major city on day one of your certificate.

Throttle On!

Chris Palmer

Founder & Chief CFI, Angle of Attack — Two-Time Master Aviation Educator and Gold Seal CFI