"Official change" refers to a formal or authorized alteration or modification. It involves making a recognized or approved adjustment to a certain situation, procedure, rule, or decision. Full definition
Whenever you move, you should inform your car insurance company of your date of move and official change of address. (autoinsurancequotes.com)
But six days later, officials changed course, warning that pregnant women, children and other vulnerable residents should keep the taps turned off. (discovermagazine.com)
The Regents is expected to soon make official this change through emergency regulations, with a public comment period to follow. (uft.org)