The Kenya Communications Act, 1998, outlines the functions of the Commission in relation to postal services as follows:

• ensure that there are provided throughout Kenya good and sufficient postal and other related services, on such terms as the Commission may deem expedient;
• ensure that the public post licensee is able to provide postal services at rates consistent with efficient and continuous service and financing viability;
• promote development of postal systems and services in accordance with recognized international standards, practices and public demand;
• exercise licensing and regulatory functions in respect of postal systems and services in Kenya in accordance with this Act;
• regulate the fixing of rates of postage and other fees or sums to be charged in respect of postal services
• the promotion and development of standards in the field of postal systems and services.