---
title: "With effect from, or effective from — aviation glossary — OnlyPlanes"
description: "WEF stands for With effect from, or effective from in FAA terminology."
canonical_url: "https://onlyplanes.ru/en/learn/with-effect-from-or-effective-from"
locale: en
meta:
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  "og:description": "WEF stands for With effect from, or effective from in FAA terminology."
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  "og:title": "With effect from, or effective from — aviation glossary"
---

> Index of every page on this site: [llms.txt](https://onlyplanes.ru/llms.txt)

Aviation abbreviation

# With effect from, or effective from

WEF

ABBR · Operations

At a glance

## Meaning of With effect from, or effective from

WEF stands for With effect from, or effective from in FAA terminology.

### More about With effect from, or effective from

This abbreviation is used in flight operations. The English reference lists With effect from, or effective from with the abbreviation WEF.

FAA abbreviations reflect US aviation usage. Their meaning and permitted use can differ in documents from other countries.

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