In March 2004, the Maryland State Highway Administration (MDOT SHA) underwent a pivotal change in its approach to welder certification. They discontinued their in-house testing and partnered with the Federal Highway Administration's Mid-Atlantic Structural Committee for Economic Fabrication (SCEF) to establish a regional certification program. Certifying at an AWS Accredited Test Facility (ATF) is now a mandatory requirement for welders working on bridge construction projects in the Mid-Atlantic region, including Maryland.
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