Financial consumer protection regulation reflects the regulator's and policy makers' concerns with the relationship between financial institutions and their clients. Most emerging markets and developing economies (EMDEs) researched for this guide have regulated at least one financial consumer protection topic. Each detail in the regulatory requirements impacts how the supervisor enforces them in practice and which tools and techniques will work best. For example, a rule simply requiring disclosure of an item will be checked by the field supervisor differently than a rule requiring the item to be disclosed at a specific moment and in a specified format. Ignoring the time dimension of this rule can jeopardize its core goal. This guide is an attempt to help bank supervisors enforce such regulations. It is divided into following sections: section one gives introduction. Section two details guidance points in eight areas of interest for supervisory staff and agencies, while section three suggests a prioritization framework for supervisors - particularly those in low-income countries with resource and capacity constraints - that adopt a gradual approach when implementing the guidance.