(Reasking as I didn't get answers before) Are these things allowed in western dressage?

I've only seen a handful of western dressage rider our local schooling shows. They did NOT have any tassles or fringe on their gear. Some do not use nose bands, they wore black helmets (get a helmet cover if you have a bright helmet, some used western saddles one used some sort of austrailian outback saddle, the spurs must meet the same requirements as English spurs, which I think is 1/4 in. max, no copper bits.

I dont know as don't ride Western, but Im sure if you google them, they'll have all the info you need. Alternatively you could try the Rodeo Dressage facebook page.

Get yourself a copy of the USEF Rule Book, and read the sections which pertain to dressage and western dressage. That should answer your question.

Evidently you are not interested in reading the rule book.

I can tell from all these TDs.

But, I have a suggestion which you may have to get one of your literate friends to read to you.

Go to a show and see what the competition is doing.

check out the RULES