If you've ever tried to get a Marriott Bonvoy card, you've likely been confused by the labyrinth of rules surrounding card and bonus eligibility. Each card has its own restrictions, layered on top of the rules from both Chase and Amex, the banks that issue Marriott co-branded cards.
A few months ago, Amex added harsh new restrictions to the Bonvoy Brilliant and Bonvoy Bevy cards, making anyone who had ever held any Chase Bonvoy card ineligible. Amex has now rolled back those restrictions, but only for the Bonvoy Brilliant card.
The Bonvoy Brilliant has returned to its previous rules structure. The only Chase-specific restriction now involving current or past ownership is the Ritz-Carlton card within the last 90 days. Restrictions tied to the Chase Bonvoy Bold, Boundless, and Bountiful cards are also back in place, meaning you cannot have opened one of those cards within the last 90 days or earned a welcome bonus on one within the last 24 months.