Word for symbolic procedure with little purpose?

For example, I am taking an online Calculus test because of Covid-19 that would normally be taken in person.

The in-person test requires photo IDs to be checked of all test takers to make sure they are the ones taking the test.

Because of this rule, we must upload our ID online at any point during the week before the test. Effectively making the process redundant but still in effect for the sake of keeping the rules.

I was wondering if there is a word that can be used to describe such a rule?

Thanks!

EDIT: After further thought I think 'a formality' would be a good phrase to describe this.

A symbolic procedure with little real purpose:

pro forma

Wikipedia explains pro forma as follows:

The term pro forma (Latin for "as a matter of form" or "for the sake of form") is most often used to describe a practice or document that is provided as a courtesy or satisfies minimum requirements, conforms to a norm or doctrine, tends to be performed perfunctorily or is considered a formality.

https://en.m.wikipedia.org/wiki/Pro_forma