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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
started on or after
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "started on or after" is correct and usable in written English.
It can be used to specify a time frame indicating that something began at a certain point or later. Example: "The project must have started on or after January 1st to be eligible for funding."
✓ Grammatically correct
News & Media
Science
Academia
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
5 human-written examples
The new ETF only applies to new contracts that started on or after November 15.
News & Media
The current starting salary for a TVP constable who started on or after 1 April 2013 is £19,971, compared to £24,447 before that date.
News & Media
An AE was considered to be treatment-emergent (TEAE) if it started on or after the first dose.
9 Trainees who started on or after 1 August 2007 are assessed by an Annual Review of Competence Progression (ARCP).
Science
These effects could be due to early summer warm weather, when the population was not acclimatised to high temperatures, but it could also be a pattern caused by something else that started before June 1st and which is therefore not estimated by the smooth function for excess, since this function assumed the excess started on or after June 1st.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
55 human-written examples
"By agreement of the parties, the government will take custody and control" of Manafort's Trump Tower condo in New York City and a home in the Hamptons — where he spent more than $2 million on a home entertainment system and a bed of red flowers in the shape of an "M"— starting "on or after" Saturday, the court ordered.
News & Media
The applicant must also have entered into at least a two-year lease starting before June 1 , 2002 and ending on or after May 31 , 2003 or a one-year lease starting on or after June 1 , 2002 and ending on or after May 31 , 2003
News & Media
The requirements apply to insurance in years starting on or after Aug. 1, 2012.
News & Media
The program is available for new bookings made through May 31 for cruises starting on or after April 1.
News & Media
Full-time postdoctoral associates on 12-month appointments starting on or after July 1, 2008 will accrue 15 days of vacation for the first year of employment and 20 days of vacation thereafter.
The period between exposure and when symptoms might develop for Mers-CoV is currently considered to be up to 14 days, according to Public Health England, which added that any illness that passengers might experience more than 14 days after the flight ( starting on or after Wednesday 14 May) would not be considered to be related.
News & Media
Expert writing Tips
Best practice
When using the phrase "started on or after", ensure the date or event it refers to is clearly defined to avoid ambiguity. For example, "Coverage is available for services that "started on or after" the policy's effective date."
Common error
Avoid using "started after" when you specifically mean "started on or after". The latter includes the specified date itself, while the former excludes it. Being precise is critical in legal or policy contexts.
Source & Trust
85%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "started on or after" functions as a prepositional phrase that modifies a verb or noun, specifying a timeframe. It indicates the beginning point from which something becomes valid or applicable, inclusive of the specified date. Ludwig's examples showcase varied applications of this phrase.
Frequent in
News & Media
30%
Science
30%
Academia
20%
Less common in
Formal & Business
10%
Reference
5%
Wiki
5%
Ludwig's WRAP-UP
In summary, the phrase "started on or after" serves as a precise temporal marker indicating the commencement point of an event or condition, inclusive of the specified date. Ludwig AI confirms that it's grammatically correct and applicable across various contexts, particularly in news, science, and academic writing. While related phrases such as "began at or following" offer alternatives, it's crucial to use "started on or after" when the intention is to explicitly include the specified date. Proper usage, as highlighted by Ludwig, involves clearly defining the temporal reference to avoid ambiguity and ensure accurate communication.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
began at or following
Replaces "started" with "began" and uses "following" for a more formal tone.
commenced from or later than
Substitutes "started" with "commenced" and "on or after" with "from or later than" for a formal variation.
initiated at or subsequent to
Employs "initiated" in place of "started" and "subsequent to" instead of "on or after" for increased formality.
effective on or after
Focuses on the effect or validity coming into play at a certain time or later.
valid from or after
Highlights the validity period starting from a particular date forward.
in effect as of
Indicates when something becomes operational or enforceable, subtly changing the focus.
operative from
Signifies when something comes into operation, using a more technical term.
taking effect no earlier than
Emphasizes that the commencement will not happen before a specified date.
established on or after
Replaces "started" with "established," suggesting a more formal and permanent beginning.
originated on or after
Uses "originated" in place of "started", giving a sense of inception or creation.
FAQs
How can I use "started on or after" in a sentence?
Use "started on or after" to indicate the beginning point from which something is valid or applicable. For example, "The new rules apply to projects that "started on or after" January 1, 2024."
What is a formal alternative to "started on or after"?
A more formal alternative includes phrases such as "commenced on or after" or "initiated at or subsequent to". For instance, "The agreement is valid for services that "commenced on or after" the approval date."
What's the difference between "started on or after" and "started after"?
"Started on or after" includes the specified date, whereas "started after" excludes it. "Benefits are available for employees who "started on or after" June 1st (including June 1st), compared to those who started before."
Is "initiated on or after" interchangeable with "started on or after"?
Yes, "initiated on or after" is often interchangeable, particularly in formal or technical contexts. For example, "The program is designed for students who "initiated on or after" the 2023 academic year."
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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
85%
Authority and reliability
4.1/5
Expert rating
Real-world application tested