Under the town and country planning act, flags have three possible designations.
What is the designation of the Ukrainian flag, and what has been its most recent changes of status?
The flag of Ukraine is a "Class H" advertisement under Schedule 1 of the The Town and Country Planning (Control of Advertisements) (England) Regulations 2007, secondary to the Town and Country Planning Act.
Schedule 1 of the regulation lists under Class H
Any country’s national flag
and it has included this since its inception in 2007.