The Rules build upon several of the Principles of Business (see Module PB (Principles of Business)). Principle 1 (Integrity) requires microfinance institution licensees to observe high standards of integrity and fair dealing, and to be honest and straightforward in their dealings with customers. Principle 3 (Due skill, care and diligence) requires microfinance institution licensees to act with due skill, care and diligence when acting on behalf of their customers. Principle 7 (Client Interests) requires microfinance institution licensees to pay due regard to the legitimate interests and information needs of their customers, and to communicate with them in a fair and transparent manner.