Officially, it appears that it’s just half of the Canadian Tux. You can show up in the jacket if you want but we’d advise you lose it while at the office.
Oh right, showing up at your client from head to toe in denim is not advisable so that eliminates a fair share of you. As for the rest of you, kindly schlep that extra outfit with you just in case. You never know when you’ll need the biz-pro or biz-casual uniform handy. On a somewhat related note, it’s not entirely clear is if the Texas Tuxedo is allowed.
Allowing denim on Fridays during busy season is probably not unprecedented but it may be enough to get some of you through the next 30-ish days. Enjoy.