After proposing a new definition for partial prestressing, this paper describes four areas in which the provisions related to the reinforcement of reinforced and prestressed concrete flexural members can be unified, namely: the concept of reinforcing index, the upper and lower limits of the amounts of reinforcement for rectangular and T sections, the requirements for moment redistribution in continuous members and the stress in the prestressing steel at ultimate for bonded tendons. The equations proposed are independent of the system of units used.