requirement of which

USAGE SUMMARY

The phrase "requirement of which" is correct and usable in written English.
It can be used when referring to a specific requirement that has been previously mentioned or is understood in context. Example: "The project has several criteria, the most important requirement of which is timely completion."

✓ Grammatically correct

Science

News & Media

Human-verified examples from authoritative sources

Exact Expressions

5 human-written examples

There are some good ideas in that area too -- some draft compromise formulas, one requirement of which is that neither the American nor the European side expect the other to make all of the important gestures.

The New York Times

They still line up for American scholarships, though — one requirement of which is that winners have to do community service, so we are also helping to build better citizens.

The New York Times

Open image in new window Fig. 3 Sample of the locomotive operation curve during a duty cycle of reciprocating running in the test rail-line in Chengdu, Sichuan, China, the maximum power requirement of which was 80 kW corresponding to gear 2. From a functional perspective, the fuel-cell locomotive works well in all respects.

Journal of Modern Transportation

However, the full mammalian integrin-adhesome network comprises ≥151 proteins, the requirement of which for maintaining muscle subcellular structure, mitochondrial capacity, and movement strength is unknown.

FASEB Journal

Commercially available urea fertilizer is the most widely used resource to meet a rice crop's nitrogen requirement, of which one third is lost through emission of greenhouse gasses and leaching, causing adverse environmental impacts [ 1- 3].

BMC Genomics

Human-verified similar examples from authoritative sources

Similar Expressions

54 human-written examples

And he emphasized that the Pentagon would "plan in our strategy for those kinds of requirements, of which there are many," including enforcing the no-flight zones over Iraq.

The New York Times

I certainly would not have tried to get a glimpse by visiting his home at Alnwick Castle, the monstrous requirements of which exert a malign influence on the town and countryside around it.

The Guardian

For investment-grade borrowers, the effect is stronger: a 111% increase in capital requirements, of which 82 points are attributable to Basel 2. The impact on junk-rated firms is much smaller, presumably because their initial capital charge and thus the implied probability of default at the outset is high.

The Economist

The L1 family of controllers allows for several topologies and an architecture is suggested that suits heading control of a vessel, the requirements of which differ from that of previous L1 literature.

IFAC Proceedings Volumes

There will be 49,750 rooms to meet IOC requirements, of which some 1,700 are located in apartment hotels in the city and more than 13,000 in hotels throughout Rio de Janeiro and the football tournament host cities. Rio de Janeiro proposed the use of cruise ships and condominium apartments to overcome a possible shortage in the number of hotel rooms.

Wikipedia

Of the 5877 manufacturing units with drug manufacturing licenses in 2002, only around 400 complied with WHO cGMP requirements, of which 300 were large scale units [ 32].

Globalization and Health

Expert writing Tips

Best practice

Use "requirement of which" in formal writing when you need to clearly connect a requirement to a previously mentioned noun phrase. This construction adds precision and avoids ambiguity.

Common error

Avoid using "requirement of which" in simpler sentences where a direct relative clause ("that") would suffice. Overusing this phrase can make your writing sound unnecessarily convoluted.

Linguistic Context

The phrase "requirement of which" functions as a relative clause, specifically a non-restrictive (or non-defining) relative clause, that provides additional information about a previously mentioned noun. Ludwig AI suggests it is grammatically correct. The structure allows for a precise connection between a requirement and its antecedent.

Expression frequency: Rare

Frequent in

Science

60%

News & Media

40%

Formal & Business

0%

Less common in

Encyclopedias

0%

Wiki

0%

Reference

0%

Ludwig's WRAP-UP

In summary, the phrase "requirement of which" is a grammatically correct construction used to introduce a relative clause specifying a requirement related to a previously mentioned noun. As Ludwig AI states, the expression is perfectly valid. While not exceedingly common, its use is most prevalent in science and news media. For clarity, consider simpler alternatives like "requirement that" in less formal contexts. Keep in mind that is a relatively formal structure best suited for technical writing or when emphasizing a precise connection between concepts.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

requirement that

Uses a simpler structure with "that" instead of "of which".

stipulation of which

Replaces "requirement" with a synonym, "stipulation".

prerequisite of which

Substitutes "requirement" with "prerequisite", indicating a necessary condition.

condition of which

Uses "condition" instead of "requirement", implying a necessary term.

aspect of which

Focuses on a specific part or feature of something.

element of which

Highlights a component or constituent of something.

feature of which

Emphasizes a characteristic or attribute.

demand of which

Replaces "requirement" with "demand", suggesting a firm request.

criteria of which

Uses "criteria" to refer to the standards by which something is judged.

the need for which

Emphasizes the necessity of something.

FAQs

How can I use "requirement of which" in a sentence?

Use "requirement of which" to specify a particular requirement related to a previously mentioned item or concept. For example: "The project has several criteria, the most important "requirement of which" is timely completion."

What are some alternatives to "requirement of which"?

Alternatives include simpler phrases like "requirement that", or more direct constructions depending on the context. You can also use synonyms like "stipulation", "prerequisite", or "condition" followed by "of which".

Is it always necessary to use "of which" after "requirement"?

No, "of which" is only needed when you are introducing a relative clause that refers back to a noun phrase. If you can rephrase the sentence to use "that" or another construction, the "of which" is unnecessary.

What is the difference between "requirement of which" and "requirement that"?

"Requirement of which" is typically used in more formal contexts to introduce a non-restrictive relative clause, whereas "requirement that" can be used more broadly. The choice depends on the level of formality and the desired emphasis.