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
requirements where
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "requirements where" is correct and usable in written English.
It can be used when specifying conditions or contexts in which certain requirements apply. Example: "We need to clarify the requirements where the project scope overlaps with existing regulations."
✓ Grammatically correct
Science
News & Media
Formal & Business
Alternative expressions(5)
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
51 human-written examples
The determination of pH is the most commonly made analytical measurement throughout the world and the vast majority of these measurements are made to fulfil quality assurance and control requirements where traceability is required.
Science
Finally, the hardware requirements where spectrum sensing for CR applications require operation over wide bands that need wideband RF sections as well as high sampling rate and consequently high resolution analog-to-digital converters with large dynamic range and high-speed signal processors [26].
Assume M → ∞, so that at each time slot, there are m(t) ≥ mreq that can achieve SUs' requirements, where, mreq is the minimum number of required subcarrier.
Due to the weak regulations for pre-service training requirements, where only 12 states (out of 50 states and the District of Columbia) require pre-service training of teachers in child care centers, all but 3 states require some form of in-service training once hired to increase the skills of providers (NCCIC, 2008).
This is noted in our published entry requirements, where appropriate.
News & Media
(The reserve ratio is, of course, dominated by legal reserve requirements, where they exist).
Encyclopedias
Human-verified similar examples from authoritative sources
Similar Expressions
8 human-written examples
22.1 Apps must comply with all legal requirements in any location where they are made available to users.
News & Media
Equation (5) is the service delay requirement, where R req is the required delay.
Equation (4) is the reliability requirement, where R req is the required reliability.
Even the new law about having to attend mediation excludes couples from the requirement where this is a factor.
News & Media
The use of structured and curvilinear meshes complies to the requirement where the grid lines align with the coordinate directions.
Expert writing Tips
Best practice
Use "requirements where" to connect specific prerequisites to particular situations or scenarios, highlighting the conditional nature of those requirements.
Common error
Avoid using "requirements where" with overly broad or undefined conditions. Always specify the conditions as precisely as possible to prevent misinterpretation.
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "requirements where" functions as a relative clause, specifying the conditions or contexts in which certain prerequisites or obligations are applicable. Ludwig examples demonstrate its use in various fields, adding contexts of specific needs.
Frequent in
Science
62%
News & Media
27%
Formal & Business
11%
Less common in
Encyclopedias
0%
Social Media
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "requirements where" functions as a relative clause, specifying conditions for prerequisites. According to Ludwig, it is grammatically correct and commonly used in Science, News & Media, and Formal & Business contexts. To enhance clarity, always precisely define the conditions following "requirements where". While generally neutral in register, it's crucial to avoid vague specifications to maintain precision. Alternatives include "situations in which requirements apply" or "circumstances under which requirements are relevant". This guide offers best practices and highlights common errors to ensure effective communication.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
situations in which requirements apply
Focuses on specific situations dictating the application of requirements.
circumstances under which requirements are relevant
Emphasizes the relevance of requirements based on particular circumstances.
instances where requirements are applicable
Highlights specific instances for requirement applicability.
scenarios in which requirements must be met
Focuses on scenarios and the necessity of fulfilling the requirements.
cases where requirements are a necessity
Stresses the essential nature of requirements in certain cases.
areas where requirements are essential
Highlights the location where requirements are vital.
contexts in which requirements are mandatory
Highlights mandatory contexts with specific requirements.
fields in which requirements are obligatory
Identifies fields where requirements are compulsory.
settings where requirements are crucial
Focuses on specific settings where requirements are important.
the moments that the needs apply
Changes the wording from requirements to needs.
FAQs
How can I use "requirements where" in a sentence?
Use "requirements where" to specify the conditions or contexts in which certain requirements apply. For example, "Clarify the "requirements where" the project scope overlaps with existing regulations."
What are some alternatives to "requirements where"?
You can use alternatives like "situations in which requirements apply", "circumstances under which requirements are relevant", or "instances where requirements are applicable" depending on the context.
Is it grammatically correct to use "requirements where"?
Yes, "requirements where" is grammatically correct and commonly used to introduce a clause that specifies the conditions under which certain requirements are applicable.
What is the difference between "requirements where" and "instances where"?
"Requirements where" specifically refers to conditions for prerequisites, while "instances where" refers to particular occurrences or examples. The first focuses on needs, the second focuses on moments.
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
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested