What it means
に関する means “related to” or “concerning.” It follows a noun or noun phrase and modifies another noun, so it is used to describe a subject, topic, issue, document, event, or other thing connected with the preceding noun. It is common in formal and informational writing and is more compact than a full clause such as 〜に関係している.
Usage note
に関する is normally used before a noun, as in 〜に関する問題. Do not confuse it with に関して, which functions as a noun-related expression meaning “regarding” and can be followed by a particle or a predicate.
Example sentences
市役所の掲示板に、引っ越しに関する手続きの案内が貼ってあります。
On the city hall bulletin board, there is a notice about procedures related to moving.