when and as required

USAGE SUMMARY

The phrase "when and as required" is correct and usable in written English.
You can use it to indicate that something should be done at intervals or only in specific situations. For example, "Employees must complete safety training when and as required."

✓ Grammatically correct

Science

News & Media

Human-verified examples from authoritative sources

Exact Expressions

1 human-written examples

Key Informant Interview: Data were collected by a single enumerator with a translator when and as required; they reread and transcribed the scripts on the same day of data collection before coding was done using pre-determined criteria.

BMC Public Health

Human-verified similar examples from authoritative sources

Similar Expressions

59 human-written examples

[BIII] Should not be carried from room-to-room; Should be discarded when the patient/resident leaves and as required; and Should minimize splashing.

Antimicrobial Resistance and Infection Control

[AII] Equipment used to clean toilets: Should not be carried from room-to-room; Should be discarded when the patient/resident leaves and as required; and Should minimize splashing.

Antimicrobial Resistance and Infection Control

By this means, functionality for patients, carers and health administrators can be customised and provided as, when and where required.

Journal of Internet Services and Applications

CYP26B1 in Sertoli cells during embryonic development keeps male germ cells undifferentiated by arresting them in mitotic quiescence and preventing them from meiotic entry until after birth, when mitosis resumes and meiosis initiates as required for spermatogenesis.

Plosone

More than half of these said they didn't always notify parents and post warning signs when sprays and foggers were applied, as required under California's Healthy Schools Act (HSA); one-fourth reported that they never did.

Environmental Health Perspectives

Our foster carers receive skilled support as and when they require it, as well as ongoing training and supervision.

The Guardian

Pros: Flexibility and access to lump sums as and when required.

The Guardian - Money

The nominations committee meets as and when required and comprises the chair, the editor-in-chief of the Guardian and two independent directors.

The Guardian

The plants were irrigated with tap water as and when required.

International Journal of Recycling of Organic Waste in Agriculture

It's about being able to respond as and when required.

BBC

Expert writing Tips

Best practice

Use "when and as required" to clearly indicate that an action or measure should only be implemented under specific circumstances and not routinely.

Common error

Avoid using "when and as required" excessively in highly formal documents. Opt for more concise alternatives like "when necessary" or "as needed" for a more streamlined tone.

Linguistic Context

The phrase "when and as required" functions as an adverbial phrase that modifies a verb or clause, specifying the circumstances under which an action should occur. Ludwig AI confirms its correct and usable nature in written English.

Expression frequency: Rare

Frequent in

Science

30%

News & Media

25%

Formal & Business

15%

Less common in

Wiki

10%

Encyclopedias

10%

Social Media

10%

Ludwig's WRAP-UP

In summary, "when and as required" is a grammatically correct phrase used to indicate that an action should only be implemented under specific conditions. While Ludwig AI confirms its validity, its frequency is rare and the register leans toward neutral, making it suitable for professional contexts but potentially verbose for highly formal writing. Alternatives such as "when necessary" or "as needed" provide more concise options. Ludwig's analysis suggests using the phrase judiciously to avoid sounding overly formal.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

when necessary

This alternative provides a shorter, more direct way of saying something should be done only if needed.

as needed

Focuses on the requirement aspect, implying action should be taken based on demand or necessity.

when the need arises

Highlights the timing of the action, suggesting it should occur when a specific need becomes apparent.

as circumstances require

Emphasizes that actions depend on situational conditions or external factors.

if and when needed

Adds a conditional element and emphasizes the potential for the action to not be required.

on an as-needed basis

Indicates a systematic approach to fulfilling requirements only when they arise.

subject to requirement

Focuses on the dependency of an action on a specific need being present.

depending on the requirements

Highlights the influence of specific needs on determining actions.

only when stipulated

Implies that the action is performed exclusively when a formal instruction or condition is in place.

as per demand

Stresses that action happens only in direct response to a request or demand.

FAQs

How can I use "when and as required" in a sentence?

You can use "when and as required" to indicate that something should be done at intervals or only in specific situations. For example: "Employees must complete safety training "when and as required"."

What's a shorter alternative to "when and as required"?

Alternatives like "when necessary" or "as needed" offer more concise ways to express the same idea.

Is "when and as required" suitable for formal writing?

While grammatically correct, "when and as required" may sound somewhat verbose in very formal contexts. Consider using alternatives like "when necessary" for better clarity.

What does "when and as required" emphasize in a sentence?

The phrase "when and as required" emphasizes that an action should only be taken under certain conditions and at specific times, not as a matter of routine.