What is the difference between a Prohibited Area and a Restricted Area?

A Prohibited Area is airspace within which no aircraft flight is permitted at any time, established for national security or other national welfare reasons — for example, the airspace over Camp David (P-40) or the White House area (P-56). A Restricted Area, by contrast, contains hazardous operations such as artillery firing, aerial gunnery, or guided missile testing, but flight may be authorized by ATC when the area is inactive or 'cold.' The practical difference is that a Prohibited Area has no mechanism for routine entry, while a Restricted Area can be used by civil aircraft with ATC permission outside of published active times, as outlined in 14 CFR Part 73 and the PHAK Chapter 15.

How do you know if a Restricted Area is active before you fly through it?

Pilots should check the area's Hours of Use and Controlling Agency, which are published in the Chart Supplement (formerly Airport/Facility Directory) and noted on sectional and IFR en route charts. You can also contact the listed Using Agency directly or ask ATC for real-time status; if ATC has jurisdiction over the airspace, they can authorize transit when the area is inactive. The AIM Section 3-4-3 advises pilots to never assume a Restricted Area is cold simply because they are not in contact with ATC — always confirm before entering.

Does a VFR pilot need a clearance to fly through a Military Operations Area?

No clearance is required for VFR flight through an active Military Operations Area (MOA), but the PHAK and AIM Section 3-4-5 strongly advise pilots to exercise extreme caution because high-speed military aircraft may be conducting aerobatics, intercepts, and other high-performance maneuvers within the area. Before entering an active MOA, pilots should contact the nearest FSS to obtain known traffic information or monitor the published frequency to stay aware of military activity. If you are instrument-rated and flying IFR, ATC will not route you through an active MOA without coordinating with the controlling agency first.

Special Use Airspace: Prohibited, Restricted, and MOAs

When you unfold a sectional chart or open an aviation app, you'll notice swaths of airspace marked in blue hatching, magenta hatching, or labeled with cryptic codes like "R-2508" or "MOA." These markings represent special use airspace (SUA) — regions where flight activities are restricted, regulated, or simply dangerous due to military training, national security, or hazardous operations below. Understanding each category is not just an FAA knowledge-test requirement; it's a fundamental survival skill every VFR pilot needs before leaving the traffic pattern.

The FAA defines and regulates special use airspace under 14 CFR Part 73, and the Aeronautical Information Manual (AIM) Chapter 3 provides detailed operational guidance. The three categories most heavily tested for the private pilot certificate are Prohibited Areas, Restricted Areas, and Military Operations Areas (MOAs). Each has a different legal standing, different entry rules, and very different consequences for blundering in uninvited.

Prohibited Areas

A Prohibited Area is exactly what it sounds like — flight by civil aircraft is prohibited at all times, full stop. These areas are established under 14 CFR Part 73 to protect national security assets or other sensitive locations where even a momentary intrusion could have severe consequences. Examples include the airspace over the White House and the U.S. Capitol building (P-56), and the Naval Support Facility at Thurmont, Maryland (Camp David). The boundaries and altitudes are published in the Chart Supplement (formerly the Airport/Facility Directory) and depicted on sectional charts with a blue hatched border and the letter "P" followed by a number.

There are no exceptions for civil pilots — you simply do not enter a Prohibited Area. Unlike most other airspace, there is no controlling agency you can call for permission. ATC cannot authorize you to fly through a Prohibited Area. If you penetrate one, you may be intercepted by military aircraft, face certificate action, or worse. Plan your route around them without exception.

Restricted Areas

A Restricted Area is airspace where flight is not entirely prohibited but is subject to conditions because of hazardous activities — things like artillery fire, aerial gunnery, guided missile tests, or other military exercises that pose a direct hazard to non-participating aircraft. Restricted Areas are established under 14 CFR Part 73 and are depicted on sectional charts with a blue hatched border and the letter "R" followed by a number (e.g., R-2508 over Edwards Air Force Base in California).

Hot and Cold Status

The key operational concept for Restricted Areas is "hot" versus "cold." When a Restricted Area is active (hot), the hazardous activity is actually occurring, and unauthorized penetration could be fatal — imagine flying through an artillery range while guns are firing. When a Restricted Area is inactive (cold), the hazardous activity has stopped, and the area may be available for civil use.

To determine whether a Restricted Area is hot or cold, you have two primary options. First, you can contact the controlling agency listed in the Chart Supplement for that specific area — this is typically a military facility or an ATC facility designated as the using agency. Second, you can contact the appropriate ATC facility, which may have real-time status information and can sometimes grant a clearance through an inactive Restricted Area on a workload-permitting basis. If you cannot confirm it is cold, you must treat it as hot and fly around it.

Entry Rules

Civil aircraft may fly through a Restricted Area only when it is inactive (cold) or when they have received explicit permission from the controlling agency. Under 14 CFR §91.133, no person may operate an aircraft within a Restricted Area contrary to the restrictions imposed unless they have the permission of the using or controlling agency. If ATC clears you through a Restricted Area, that clearance constitutes the required authorization. For VFR pilots without an IFR clearance, the practical approach is to call the controlling agency or the nearest FSS to confirm the area is cold before proceeding through it.

Military Operations Areas (MOAs)

A Military Operations Area is a block of airspace established to separate or segregate military training activities — things like air combat maneuvering, aerobatics, formation flying, and low-altitude tactics — from IFR traffic. The critical difference between a MOA and a Restricted Area is this: MOAs do not prohibit or restrict VFR flight. A VFR pilot has the legal right to fly through an active MOA without permission.

That said, the practical wisdom here is clear. The FAA and the AIM strongly caution that flying through an active MOA is dangerous. Military jets performing air combat maneuvering may be pulling high-g turns, descending rapidly, and flying at speeds that give very little time for see-and-avoid to work. Before entering an active MOA, a prudent pilot will:

Contact the controlling agency (listed in the Chart Supplement) or the nearest Flight Service Station to determine whether the MOA is active.
If active, consider flying around it — the time savings from cutting through rarely justify the risk.
If you must transit, remain vigilant, keep your eyes outside the cockpit, and avoid high-traffic altitudes within the MOA.
Monitor the published frequency for the controlling agency.

MOAs are depicted on sectional charts with a magenta hatched boundary and labeled with the MOA's name. The Chart Supplement lists the altitudes, times of use, and the controlling agency for each MOA. MOAs are established to protect IFR traffic, meaning ATC will not route IFR aircraft through an active MOA without coordination, but VFR aircraft are on their own.

Other Special Use Airspace Worth Knowing

While Prohibited Areas, Restricted Areas, and MOAs are the three most tested categories, the FAA also recognizes several others that appear on charts and in exam questions. Warning Areas extend from 3 nautical miles outward from the U.S. coastline and contain similar hazardous activity to Restricted Areas, but because they lie largely over international waters, the FAA cannot legally restrict flight as it can over domestic airspace — hence the name "warning" rather than "restricted." Alert Areas contain a high volume of pilot training or unusual aerial activity; VFR pilots may enter but must be especially vigilant. Controlled Firing Areas (CFAs) are unique in that the hazardous activity is suspended immediately when a non-participating aircraft approaches — they are not charted because they yield to other traffic automatically.

Why It Matters

Violating special use airspace is not just a regulatory infraction. Intercepting a presidential aircraft security zone could result in an armed intercept. Flying through an artillery range at the wrong moment is a potentially unsurvivable mistake. Even a MOA incursion at the wrong moment could result in a midair collision with a fighter jet at closing speeds of hundreds of knots.

From a certificate standpoint, unauthorized penetration of a Prohibited or Restricted Area almost certainly triggers a FAA enforcement action under 14 CFR §91.133 and could result in suspension or revocation of your pilot certificate. The consequences extend beyond your own aircraft — a security violation may prompt temporary flight restrictions (TFRs) that affect thousands of other pilots and cost significant resources to investigate.

Key Numbers and Rules

14 CFR Part 73 governs Prohibited and Restricted Areas specifically.
14 CFR §91.133 prohibits flight within Restricted Areas without authorization from the controlling or using agency.
Prohibited Areas — no civil flight, no exceptions, no ATC authorization available.
Restricted Areas — civil flight permitted only when inactive (cold) or with explicit permission from the controlling agency.
MOAs — VFR flight legally permitted at all times, but extreme caution is required when active; IFR flights need ATC coordination.
Chart depiction: Prohibited and Restricted Areas shown with blue hatching; MOAs shown with magenta hatching.
Always check the Chart Supplement for hours of operation, altitudes, and the controlling agency for any SUA.
Warning Areas begin 3 NM from the coastline; they cannot be legally restricted because they lie over international waters.

Memory Aid

Use the phrase "P-R-M — Prohibited, Restricted, MOA" to rank the categories from most to least restrictive. Think of it as a stoplight: Prohibited is red (stop — never enter), Restricted is yellow (caution — only with permission or when cold), and MOA is green with a warning sign (you can go, but look hard before you do). This ranking helps you immediately recall what the rules are when you spot each type on a chart.

Common Test Traps

Assuming MOAs require permission for VFR flight. They do not — a VFR pilot may legally enter an active MOA. The trap is confusing MOAs with Restricted Areas on the exam.
Thinking ATC can clear you into a Prohibited Area. ATC has no authority to authorize entry into a Prohibited Area. If an exam question implies ATC permission is sufficient, the answer for Prohibited Areas is still "no entry."
Confusing Warning Areas with Restricted Areas. Warning Areas contain similar hazards but are over international waters and cannot be legally restricted. The FAA can warn — it cannot prohibit.
Forgetting that a cold Restricted Area still requires confirmation. You must positively confirm it is inactive — assuming it's cold because you don't hear gunfire is not a valid strategy.
Misreading chart symbology. Blue hatching = Prohibited or Restricted; Magenta hatching = MOA. Mixing these up on a chart-reading question will cost you points.