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# What Is Prior Permission Required in Aviation?
- URL: https://www.acmiworld.com/what-is-prior-permission-required-in-aviation/
- Published: 2026-09-14T16:35:33.000Z
- Updated: 2026-09-14T16:35:33.000Z
- Description: Prior Permission Required defined for aviation professionals, with its operational or commercial use, document context and related terminology.
- Author: ACMI World
- Tags: Aviation Glossary, Aviation Regulation & Traffic Rights, #Import 2026-09-14 15:41

## Meaning in Professional Aviation

Prior Permission Required, or PPR, means an airport or facility requires advance approval before an aircraft may use it.

Aviation Glossary

**Term:** Prior Permission Required

**Category:** Aviation Regulation & Traffic Rights

## Regulatory Context

Prior Permission Required sits within the regulatory framework governing international operations, airspace, border formalities, weather information or commercial traffic rights. Requirements can differ by state and by type of operation.

## Operational Use

PPR can be driven by parking, runway limits, security, military status, local restrictions or peak-capacity controls and is separate from an ATC slot.

## What Operators Need to Check

Verify the responsible authority, lead time, current validity, required documents and whether a separate airport, customs, immigration, slot or traffic-right approval is also needed.

## Related Aviation Topics

Related ACMI World coverage includes [international charter compliance](https://www.acmiworld.com/international-charter-compliance-guide-for-buyers/), [international private jet planning](https://www.acmiworld.com/can-jets-fly-internationally-key-planning-factors/), [diplomatic flight clearance](https://www.acmiworld.com/how-to-arrange-diplomatic-flight-clearance/), [military airport access rules](https://www.acmiworld.com/can-jets-use-military-airports-access-rules/) and [DGCA wet-lease rules in India](https://www.acmiworld.com/acmi-leasing-into-india-dgca-wet-lease-rules-explained/).

PPR can be driven by parking, runway limits, security, military status, local restrictions or peak-capacity controls and is separate from an ATC slot.

Frequently Asked Questions

## Prior Permission Required FAQ

What does Prior Permission Required mean in aviation?

Prior Permission Required, or PPR, means an airport or facility requires advance approval before an aircraft may use it.

Why does Prior Permission Required matter?

PPR can be driven by parking, runway limits, security, military status, local restrictions or peak-capacity controls and is separate from an ATC slot.

Where would an aviation professional encounter Prior Permission Required?

It is commonly encountered in aviation regulation & traffic rights documents, procedures, calculations or operating discussions where the underlying technical or commercial issue is relevant.

Is the requirement identical in every country?

No. International standards influence aviation regulation, but permits, filings, operating approvals and enforcement remain jurisdiction-specific.