Recent increased enthusiasm towards mechanization and automation of production systems have resulted in interactions between maintenance management and statistical process control (SPC) as the main two major components of production systems. Consequently, different integrated models of maintenance and SPC have been developed to coordinate the decisions of these two components. In this paper, two maintenance policies are investigated for coordination of decisions of maintenance and SPC. A generic integrated mathematical model is developed and with simple modifications, the model can be employed to minimize the expected cost of the process unit time under each policy. Sensitivity analyses, comparative studies, and numerical examples are also provided.