The CBB has established a Directive contained in "Module OB: Open Banking" in Volume 5 of the CBB Rulebook that deals with a new sub category of ancillary service providers who, under the terms of the CBB license, may provide "payment initiation services" and/or "account information services". Such licensees are termed "payment initiation service providers" or PISPs and "account information service providers" or AISPs. Banks and other licensees which maintain a customer account is referred to in the CBB Rulebook Volume 5 as "licensees maintaining customer accounts".