Source: National Precast Concrete Association, Carmel, Ind.
Effective March 1, the NPCA Quality Assurance Committee is applying the 9th Edition of the Quality Control Manual for Precast and Prestressed Concrete Plants to producers seeking or renewing plant certification. Available for free download, the manual is the baseline reference for a plant certification program now required by 34 state departments of transportation.
Additional information on the revised manual can be obtained from NPCA Director of Technical Services and Plant Certification Phillip Cutler, PE, 317/582-2420.