Planar Monolithics Industries, Inc., (PMI) announced they have received their ISO 9001:2008 certification for their Quality Management System. With the recent successful completion of the audit at the El Dorado Hills, Calif. facility, now all three PMI facilities, including both facilities located in Frederick, Md., are ISO certified. ISO 9001:2008 certification is a prestigious certification requiring companies to meet the complex and demanding documentation, quality system and continuous process improvement requirements of the aerospace, defense and commercial industries.