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
except where required for
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "except where required for" is correct and usable in written English.
It can be used in contexts where you want to specify exceptions to a general rule or requirement. Example: "All employees must wear safety gear, except where required for specific tasks that do not pose a risk."
✓ Grammatically correct
Science
News & Media
Academia
Alternative expressions(1)
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
5 human-written examples
There is no foreseeable reason for personal or identifying participant information to be shared throughout the conduct of the trial, except where required for adverse event reporting.
Science
The BBC will not publish this information or provide it to any third party without permission, except where required for enforcement of these terms.
News & Media
The BBC will not publish this information or provide it to anyone without permission, except where required for enforcement of these terms.
News & Media
The BBC will not publish or provide your personal information to anyone without permission, except where required for enforcement of these terms.
News & Media
Where such investigations are required, the BBC will only ever use your telephone number for the purposes of processing refunds or investigating possible voting irregularities and will not publish or provide it to anyone without permission, except where required for enforcement of these terms.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
55 human-written examples
Resistance exercises were not modified for patients with vertebral fractures that were stable, except where required, eg for spinal deformity or lower back pain.
Science
Immunohistochemistry was not performed on lymph nodes obtained from standard ALND, except where required by the histopathologist for investigation of suspicious cells.
Science
NDVS are NOT eligible for any kind of on or off campus employment authorizations except where required as part of the pre-established NDVS arrangement.
Academia
Local ethics committee approval was obtained where required (see Additional file 1 – Study approvals), and all participants provided written informed consent (except for France where it was not required for this type of data collection).
Science
Reviewer 1: The study by Gomez et al. reports that knockout of Lrp4 in all tissues in mice except skeletal muscle (where it is required for survival), causes impairment in hippocampal-dependent learning and memory behavioral tasks, LTP at the Schaffer collateral, and a reduction in spine density in CA1 primary apical dendrites.
Science
We know little about how this is achieved, except in budding yeast where factors specifically required for kinetochore monoorientation have been identified.
Science
Expert writing Tips
Best practice
When using "except where required for", ensure that the condition for requirement is clearly defined to avoid ambiguity. For instance, specify the circumstances or specific tasks that necessitate the exception.
Common error
Avoid using "except where required for" without specifying what constitutes the requirement. This can lead to confusion and inconsistent application of the rule or guideline.
Source & Trust
83%
Authority and reliability
4.3/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "except where required for" functions as a conditional conjunction, introducing an exception to a general statement. As demonstrated by Ludwig, it specifies circumstances under which the general rule does not apply.
Frequent in
Science
30%
News & Media
30%
Academia
20%
Less common in
Formal & Business
10%
Wiki
5%
Encyclopedias
5%
Ludwig's WRAP-UP
In summary, "except where required for" serves as a conditional conjunction that introduces an exception to a general rule. Ludwig indicates that this phrase is grammatically correct and can be utilized across diverse contexts, including science, news and media, and academia. While it is neutral in register, it adds a layer of flexibility and clarity to your writing. To enhance your writing, ensure that you clearly define the condition necessitating the requirement to prevent any ambiguity. If you need to phrase the concept using different words, you could consider using "unless necessitated by", or "save when mandated by".
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
unless necessitated by
Changes the wording to a more formal tone, using 'necessitated' instead of 'required'.
save when mandated by
Replaces 'except' with 'save' and 'required' with 'mandated', implying a more formal or legal context.
except when dictated by
Uses 'dictated' to suggest a stronger sense of necessity or authority.
apart from instances where needed for
Rephrases the sentence structure to emphasize specific instances rather than a general exception.
excluding situations demanded by
Substitutes 'except' with 'excluding' and 'required' with 'demanded', adding a sense of urgency.
except as stipulated for
Emphasizes a formal or legal condition, where the requirement is clearly 'stipulated'.
unless circumstances call for
Shifts the focus to the circumstances that create the necessity, rather than a direct requirement.
except as preconditions dictate for
More specific in noting pre-existing conditions necessitating action.
only if the situation demands
This phrase emphasizes that the action is only permitted if the situation explicitly requires it.
save where the context necessitates
Emphasizes the role of context in determining the necessity of the requirement.
FAQs
How can I rephrase "except where required for" to sound more formal?
You can use more formal alternatives such as "unless necessitated by", "save when mandated by", or "except as stipulated for" depending on the specific context.
What's the difference between "except where required for" and "unless necessary for"?
While similar, "except where required for" implies a defined rule with specific exceptions, whereas "unless necessary for" /s/unless+necessary+for suggests a case-by-case evaluation of necessity.
Is it grammatically correct to start a sentence with "except where required for"?
While grammatically correct, starting a sentence with "except where required for" can sound awkward. It's generally better to incorporate it within the main clause to improve readability.
What are some common situations where I might use "except where required for"?
This phrase is useful in legal documents, operational procedures, or research protocols to specify exceptions to general rules or guidelines, ensuring flexibility while maintaining order. You can also consider /s/unless+circumstances+call+for.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
83%
Authority and reliability
4.3/5
Expert rating
Real-world application tested