This report examines policies and procedures in the use of substitute teachers. A total of 488 school systems in 49 states responded to a survey that included items on substitute program organization; application, selection, evaluation, and dismissal procedures; absence policies for regular teachers; size and costs of substitute teacher forces; orientation and inservice programs available to substitutes; collective negotiation agreements concerning substitutes; and alternatives to the use of substitute teachers. The survey responses are summarized in two main sections: (1) current practices and procedures in the use of substitute teachers, and (2) examples of actual policies, procedures, and guidelines regarding substitute teachers in 33 school systems in 21 states. A brief review of the literature on substitute teaching is also included.