effective April 1, vs effective as of April 1,

Both phrases are correct and commonly used in English. They are interchangeable and convey the same meaning. The choice between them is a matter of personal preference or style.

Last updated: March 31, 2024

effective April 1,

This phrase is correct and commonly used in English.

This phrase is often used in official documents, contracts, or announcements to indicate the date when something becomes effective.

Show examples from the web [+]

Following the consultations with the Commission and the European Aviation Safety Agency and further consultations with the air carrier, the competent authorities of Israel decided to revoke the AOC of Sun D'Or effective April 1, 2011.
April 1, they shut it tight.
On April 1, direction Africa.
At a meeting of foreign ministers in Istanbul on April 1, 2012, the US and other countries pledged active financial and logistical support for the Free Syrian Army.
It was April 1, 1980-something, and my sister was spending time in her true home...
Arrow 3x18 Public Enemy Original Air Date on April 1, 2015
APRIL 1, 2OO2 END OF THE HOUSE OF DETENTION?
On April 1, 2009, an EC White Paper (COM (2009)147 final). on Adaptation Measures was presented, through which the EU and its member states can better prepare for the impacts of Climate Change.
April 1 is daddy's birthday.
Convicted April 1 st, 1996.
It's a diary from Maia Rutledge dated April 1 9th through September 2nd, 1847.
The State's evidence will show that on or about April 1 Carolyn Polhemus, a deputy prosecutor in Kindle County was brutally murdered.
Doesn't April 1 mean anything to you?
But it's only April 1 today.
Him and Eddie Cochran were the brightest stars in the firmament when they climbed into a cab outside the Savoy, April 1 6th, 1960.
April 1 4, 1936 LONG live THE republic!
See, if you look right there, 'cause this says April 1 on it, not April 21.
The town also has a self styled "republic" inside it - the "Užupis Republic" inhabited by artists who celebrate its independence on April 1.
Did you remember that 3 pm of April 1 6, last year?
On April 1 5 of this year of our Lord, 1861... Simon Cameron, the secretary of war of the United a telegram to our governor to raise three regiments of infantry... to be sent to assist in suppressing the Southern Confederacy.

Alternatives:

effective as of april 1,
effective from april 1,
effective starting april 1,
effective on april 1,
effective beginning april 1,

effective as of April 1,

This phrase is correct and commonly used in English.

This phrase is often used in official documents, contracts, or announcements to indicate the date when something becomes effective.

Show examples from the web [+]

Following the consultations with the Commission and the European Aviation Safety Agency and further consultations with the air carrier, the competent authorities of Israel decided to revoke the AOC of Sun D'Or effective April 1, 2011.
As of April 2010 Registers Iceland has published market information about commercial buildings on a monthly basis.
Other information: In prison in the Philippines as of April 2009.
Other information: Present in Somalia as of April 2009 following transfer from United Kingdom.
The total as of April 19, 2002 stood at 15.
It should be noted that, as of April 2005, 3i is the owner of the 30 % previously held by Skandia.
COM(2004)0508. but, as of April 2006, the second edition has yet to appear.
In its answer to Question E-0472/05 the Commission states that it will be able to provide a list of unsafe third-country airlines as of April 2006.
As of April, this starting point was followed by an agreement in principle from the Member States.
April 1, they shut it tight.
On April 1, direction Africa.
It is a cause for concern that commitment implementation for internal policies has fallen to 10% as of April 2003, compared with 24% in 2002.
At a meeting of foreign ministers in Istanbul on April 1, 2012, the US and other countries pledged active financial and logistical support for the Free Syrian Army.
According to Japan's Ministry of Economy, Trade, and Industry, which surveyed firms roughly a month after the earthquake, more than 60% of production sites in affected areas had already recovered as of April 15.
Latvia argues that as of April 2011, several actions were taken, including the closure of airBaltic's hub in Vilnius and the cancellation of routes, thereby starting airBaltic's restructuring process.
When SKB banka d.d. refused to further finance Elan in the beginning of 2008, KD Kapital exercised its put option in March 2008, with effect as of April 2008.
In order to enhance corporate governance, the Governing Council decided to create an ECB Audit Committee as of April 2007, composed of three of its members, with John Hurley (Governor of the Central Bank and Financial Services Authority of Ireland) as Chairman.
In other words, will a public list of unsafe cargo airlines also be available as of April 2006?
Finally, the complainant considered that the excess stock-piling was placed on the Union market as of April 2013 leading to oversupply with consequent downward pressure on prices, even if at the same time imports from India decreased.
Did you remember that 3 pm of April 1 6, last year?

Alternatives:

effective april 1,
effective from april 1,
effective starting april 1,
effective on april 1,
effective beginning april 1,

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effective April 1, vs effective as of April 1,