Professional Certification and Beyond Nov, 2004 By Ronald O. Hamburger, S.E. SECB In Articles, Editorial This article is currently only available in PDF format, please click the link to the top right. About the author ⁄ Ronald O. Hamburger, S.E. SECBRonald O. Hamburger (rohamburger@sgh.com) is a senior principal at Simpson Gumpertz & Heger in San Francisco. Prev The Past, Present, and Future of Retractable Roofs Next Where the Past Meets the Future