Answer:
To begin, you are asking about credit cards, so your reference should be to Regulation Z, not Regulation E. Under Regulation Z, business credit cards are covered only by subsections 226.12(a) on issuance of cards and 226.12(b) on unauthorized transactions. The section (226.13) on billing errors does not apply to business cards.
First published on BankersOnline.com 10/29/07