New king, new rules.

A new report about King Charles III’s coronation has revealed the pared-down dress code that the royal is requesting for certain attendees — and it gives a clue to how the royal family will be decked out for the historic occasion.

Over the weekend, The Telegraph revealed that members of the House of Lords — the second chamber of UK Parliament — have been told to ditch their special fur-trimmed coronation robes and coronets in favor of the basic robes they wear at the state opening of Parliament each year.

Since most don’t own their own robe, they’re allowed to borrow one from Parliament if they so choose.

If these guests, known as peers, choose to go even less formal, they may wear “standard business dress,” per invites.

The dress code is a major break with tradition as typically, members of the House of Lords are decked out in plush crimson velvet robes with white fur collars for coronations, like the 1953 ceremony for Queen Elizabeth II.

They also wear a small crown that denotes their rank in the British peerage, with each coronet varying in style.

Per the Telegraph, a duke wears a circlet with “eight strawberry leaves” and the most simple design — a band featuring “six silver balls” — is for a baron, the lowest rank of the peerage.

The Telegraph added that the new dress code is in line “with the monarch’s desire for a pared-back ceremony that reflects public attitudes towards the royal family and a desire to avoid excess during the cost of living crisis.”

The news comes amid rumors that Kate Middleton might not wear a tiara to her father-in-law’s coronation, with Buckingham Palace sources adding the conversation is “ongoing.”

With the House of Lords potentially wearing business attire instead of crowns, it seems likely the rest of the family could follow suit.