The phrase "be effective upon" is correct and can be used in written English.
It is often used to indicate the point in time at which something becomes effective or applies. Here is an example sentence: "The new company policies will be effective upon approval from the board of directors."
Wills are effective upon the death of the testator and do not need to be probated.
The appointment of Mr. Katzenbach, 82, who was an attorney general under President Lyndon B. Johnson, is effective upon WorldCom's exit from bankruptcy, which the company has said will occur in April.
The rule that the acceptance is effective upon dispatch creates a situation in which the offeror who wishes to revoke his offer is uncertain whether or not he can still do so, since his revocation is not effective until receipt, whereas the offeree's acceptance, if one is made, takes effect on dispatch.
The "November 13" rule was effective upon publication in the November 13 , 2001Federal Register.
However, the law was effective upon enactment and OCR has been accepting and investigating complaints under this authority".
Moreover, as noted above, these compounds are effective upon administration 2 4 h prior to chemotherapy.
Gawchik et al. [ 12] in the only randomised control trial showed topical steroids were effective upon chronic cough, associated with post nasal drip syndrome, following a two to eight week course.
As indicated in the study by Wenger et al. [ 12], HIV patients are less likely to miss ART appointments when they have a good knowledge of the etiology of the disease and understand that ART is effective upon adherence.
The measure, which is expected to be brought to the floor for a vote, would be effective immediately upon its enactment.
While some powers are written so they only "spring" into action when you're incapacitated, out of the country or otherwise unavailable, most are written to be effective immediately upon signing.
