Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
As required
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "As required" is correct and usable in written English.
It can be used to indicate that something should be done according to specific needs or conditions. Example: "Please submit the report as required by the deadline set by the management."
✓ Grammatically correct
Wiki
News & Media
Science
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
60 human-written examples
Skim occasionally as required.
News & Media
Do as required.
Wiki
Paint inside as required.
Wiki
Make changes as required.
Wiki
Adjust as required.
Wiki
Paint with as required.
Wiki
Make adjustments as required.
Wiki
Cut as required.
Wiki
Remove or rearrange as required.
Wiki
Remove for eating as required.
Wiki
Advise table hosts as required.
Wiki
Expert writing Tips
Best practice
Use "as required" to indicate that an action or step should be performed only if a specific condition is met or when a particular need arises. This adds flexibility and avoids unnecessary actions.
Common error
Avoid using "as required" excessively in contexts where the necessity is already implied. Overuse can make your writing sound repetitive and less impactful. Instead, rely on the context to convey the need for action.
Source & Trust
70%
Authority and reliability
4.2/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "as required" functions primarily as an adverbial phrase, modifying a verb or clause to indicate a condition or necessity. Ludwig's analysis confirms its role in specifying when an action should be performed.
Frequent in
Wiki
41%
News & Media
26%
Science
14%
Less common in
Formal & Business
7%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the adverbial phrase "as required" is a grammatically sound and commonly used expression that adds conditionality to instructions or guidelines. It is versatile enough for various contexts, but Ludwig AI suggests it is most frequently found in Wiki, News & Media, and Science-related sources. Remember to use "as required" judiciously, avoiding overuse where the necessity is already implied. Consider alternatives like "when necessary" or "as needed" to enhance your writing's nuance and precision. Ludwig’s analysis confirms that the phrase is correct and usable in written English.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
When necessary
Emphasizes the condition of necessity for something to occur.
As needed
Focuses on the need for something, implying flexibility in its application.
If necessary
Highlights a conditional scenario where something may or may not be needed.
Where applicable
Indicates that something should be done only in situations where it is relevant or appropriate.
As appropriate
Highlights the suitability of an action based on the circumstances.
When the situation demands
Highlights the urgency and specific conditions that trigger the action.
To the extent necessary
Specifies the degree or amount to which something is required.
Depending on circumstances
Emphasizes the influence of varying conditions on the required action.
As the situation warrants
Implies that the specific action is justified by the current situation.
Pursuant to requirements
This is more formal and legalistic, indicating compliance with a specific set of rules or standards.
FAQs
How do I use "as required" in a sentence?
The phrase "as required" is typically used to indicate that something should be done only if needed or under specific conditions. For example, "Add water to the mixture "as required" to achieve the desired consistency".
What's a more formal alternative to "as required"?
For a more formal tone, consider using phrases like "when necessary", "where applicable", or "pursuant to requirements". Each conveys a similar meaning of conditionality but in a more elevated style.
What's the difference between "as needed" and "as required"?
While "as needed" and "as required" are often interchangeable, "as required" can sometimes imply a more formal or mandatory condition, while "as needed" suggests a more flexible or optional approach. Context is key to their interchangeability.
Can I start a sentence with "as required"?
While grammatically possible, starting a sentence with "as required" is less common and might sound awkward in some contexts. It's generally better to place it within the sentence for better flow. Consider rephrasing to improve readability.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
70%
Authority and reliability
4.2/5
Expert rating
Real-world application tested