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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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an effective date

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "an effective date" is correct and usable in written English.
It is typically used in legal, business, or contractual contexts to specify the date on which a particular agreement, policy, or regulation becomes valid or enforceable. Example: "The new policy will take effect on an effective date of January 1, 2024."

✓ Grammatically correct

News & Media

Wiki

Science

Human-verified examples from authoritative sources

Exact Expressions

19 human-written examples

"This is just a reminder to let people know there's an effective date.

News & Media

The New York Times

The final rule would also contain an effective date – a date by which the new threshold would be implemented.

But he said they had talked about legislation this year and an appropriation next year, meaning an effective date of Jan . 1 , 2003

News & Media

The New York Times

Under Iraq's Constitution, if an effective date is not specified in the legislation, then it is the date the legislation is published in the Ministry's newspaper.

News & Media

The New York Times

House aides said the program of "earned legalization" would be governed by an effective date -- January 2002, for example -- that would eliminate an incentive for new immigration.

News & Media

The New York Times

Heyburn overturned parts of Kentucky's same-sex marriage ban on February 12 and set an effective date for his ruling of March 21.

News & Media

The Guardian
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Human-verified similar examples from authoritative sources

Similar Expressions

40 human-written examples

During the United States Bicentennial year, George Washington was posthumously appointed to the grade of General of the Armies of the United States by the congressional joint resolution Public Law 94-479 passed on January 19 , 1976 with an effective appointment date of July 4 , 1976

Republicans were looking for ways to fracture the fragile Shays-Meehan coalition and were considering ideas like striking out the $10,000 donations to state parties dear to black Democratsor restoring an immediate effective date to the soft money ban.

News & Media

The New York Times

In its decision, the court wrote that it would not address whether an earlier effective date was warranted, "because that would require it to make factual determinations in the first instance based on the evidence the Board failed to consider, which it may not do".

News & Media

The New York Times

By 2005, the CFA Institute had approved the new edition of GIPS and moved toward the convergence of the PPS and GIPS with an official effective date of Jan . 1 2006.

News & Media

Forbes

"We are working closely with Covered California and taking multiple actions to remind members that their first month's premium needs to be paid by January 6 to ensure a January 1 effective date and avoid gap in coverage," Mia Campitelli, a spokeswoman for Blue Shield of California, said.

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Expert writing Tips

Best practice

When specifying "an effective date" in legal or contractual documents, be precise and unambiguous to avoid potential disputes. Use a format like 'YYYY-MM-DD' to eliminate confusion.

Common error

Avoid using relative terms like "immediately" or "soon" when defining "an effective date". Always specify an exact date to prevent misinterpretations.

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

83%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "an effective date" functions as a noun phrase specifying a particular point in time when something becomes operative or valid. It often serves as the subject or object of a sentence, as showcased in Ludwig's examples.

Expression frequency: Common

Frequent in

News & Media

45%

Wiki

25%

Formal & Business

15%

Less common in

Science

10%

Encyclopedias

3%

Reference

2%

Ludwig's WRAP-UP

In summary, "an effective date" is a noun phrase used to specify when a policy, agreement, or regulation comes into force. Ludwig AI indicates it's grammatically correct and widely used, especially in formal and professional contexts, such as news, legal documents, and business communications. While alternatives like "start date" or "implementation date" exist, precision is key when using this phrase to avoid ambiguity. Remember to use a clear and specific date format and avoid vague language.

FAQs

How to use "an effective date" in a sentence?

You can use "an effective date" to specify when a new rule, law, or agreement will come into force. For example, "The new policy will have "an effective date" of January 1, 2026."

What can I say instead of "an effective date"?

You can use alternatives like "start date", "implementation date", or "commencement date" depending on the context.

Which is correct, "effective date" or "effectual date"?

"Effective date" is the commonly used and accepted term. "Effectual date" is less frequent and might sound awkward in most contexts.

What's the difference between "an effective date" and "a launch date"?

"An effective date" typically refers to when a rule, law, or policy comes into force. "A launch date" usually refers to when a product, service, or project is released or made available.

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Source & Trust

83%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: