The phrase "already common practice" is correct and usable in written English.
It can be used to describe something that has become a standard or routine behavior in a particular context or field.
Example: "Using digital tools for communication has become already common practice in remote work environments."
Alternatives: "widely accepted practice" or "standard procedure".
As so often with long-awaited party pronouncements, much of the "breakthrough" is already common practice and the toughest issues are skirted.
But tiering the speed of internet services to end users - which is already common practice from many landline ISPs - is not necessarily the same issue which riles the campaigners.
Uganda's elephant populations were seriously depleted during the civil war in the first half of the 1980s, but UWA chief executive Moses Mapesa insisted that the loss of those years had been reversed and that legalisation of big game hunting allowed the government to earn money from an activity that was already common practice.
Remote access to devices like PCs is already common practice and has been for a long time.
It is already common practice for doctors to prioritize – seeing private-pay patients first, Medicare patients next and Medicaid patients last.
While it is reportedly already common practice for NYC prisons to provide inmates with tampons and pads, in many jurisdictions, women prisoners have to buy them with their own money.
They were taken off the blacklist last June, after codifying what banking regulators said were already common practices.
Testing requirements – The proposal calls for annual penetration testing and quarterly vulnerability testing, which are already common practices for most organizations.
As a result, sales are up "across the board".Traffic-counting is already fairly common practice.
It is already a common practice for nurses who work at hospitals or for doctors in private practice to transcribe and transmit such prescriptions.
