WSP, MARTA Take Top Honors in APTA Sustainability Program WSP, MARTA Take Top Honors in APTA Sustainability Program Written by Marybeth Luczak, Executive Editor MARTA earned Gold in APTA's Sustainability Commitment Program for successfully achieving ISO 55000 certification for its asset management program, and ISO 14001:2015 Environmental Management System certification at nine facilities. The American Public Transportation Association (APTA) has awarded members WSP and Metropolitan Atlanta Rapid Transit Authority (MARTA) with Platinum and Gold recognition, respectively, in its Sustainability Commitment Program. Public transit agencies and businesses that voluntarily join the APTA program “pledge to implement processes and actions that create continuous improvements in environmental, social and economic sustainability,” according to the association, and “report on their sustainability progress through a brief annual status update.” Since its launch in 2009, 126 companies have signed on and 48 have received higher-level (Platinum, Gold, Silver or Bronze) recognition based on “specific measurable achievements.”