‹ MIR-4.5 Systems and Controls MIR-4.5.2 › MIR-4.5.1 The business rulebook of an SRO shall provide sufficient provision and requirements that cover the minimum requirements for maintaining systems and controls that each member is required to meet. Adopted January 2010 ‹ MIR-4.5 Systems and Controls MIR-4.5.2 ›