Do your $20k/$50k counters reset on the calendar year, or on the anniversary date of card activation? If I were to apply for the card now, would I have one year to hit the level, or really about ten months?

Do the Ritz certs have an expiration date on them? (Sounds like they do.) If so, is it a set number of months from the date they were issued, or is it always a fixed date? e.g., I earn one in 2005, it expires Dec 31, 2006 no matter when I earned it. Are the certificates transferrable? Not that I'd hawk them on eBay, but could I donate them to charity if I so chose?