The phrase "may disallow" is grammatically correct and commonly used in written English.
It means that something may be rejected or not accepted. Example: The judge may disallow the evidence presented by the defense if it is found to be irrelevant or unreliable.
It said further reviews may disallow many others.
Just make sure to wait at least 31 days before buying back a security sold at a loss, or the IRS may disallow the loss under the wash sale rules.
In this instance, buried Pro mutations may disallow conformational changes to impact allosteric regulation for catalysis, but surface Pro mutations may alter interactions involving substrate binding or protein-protein interactions.
The institution of protocol-directed care in the intensive care unit (ICU) may be detrimental in that it potentially distances physicians from direct patient care and may disallow trainees from thinking beyond an algorithm.
If you use it in a major skirmish they may disallow usage.
However, if this becomes too frequent, the referee may disallow any conversation altogether.
Lenders may also disallow rental income from a property you own, unless you have at least 30 percent equity in it, he said.
They may typically disallow images wider than 500 pixels, or ones with a file size of around 1 MB.
But when renovation costs are not incurred by the landlord, all or part of the increase may be disallowed.
Without clear policies, she said, "the onus is on the traveler" to guess, sometimes when checking in at the airport on the day of travel, whether a fee for a certain service may be disallowed later.
Without it, the millions affected by the historic security breach may be disallowed from related joining class action lawsuits.
