Approx. 6.6% of credit cards (CC) were 30 or more days past due in the first qtr. of 2009 -- the highest rate in 18 years. To recover delinquent debt, CC issuers may use their own collection dept., outside collection agencies, collection law firms, or sell the debt. This report examined: (1) fed. and state consumer protections and enforcement respon. related to CC debt collection; (2) the practices involved in collecting and selling delinquent CC debt; and (3) issues that may exist related to some of these practices. To address these objectives, the author interviewed rep. from 6 large CC issuers, 6 third-party debt collection agencies, 6 debt buyers, two law firms, fed, and state agencies, and attorneys and organizations representing consumers and collectors. Illus.