Despite the Romans' common use of lead pipes, their aqueducts rarely poisoned people. Unlike other parts of the world where lead pipes cause poisoning, the Roman water had so much calcium in it, that a layer of plaque prevented the water contacting the lead itself.
OMB definition, Office of Management and Budget: the division of the Executive Office of the President that prepares and administers the federal budget and improves management in the executive branch. See more.
OMB carries out its mission through five critical processes that are essential to the Presidentâs ability to plan and implement his priorities across the Executive Branch: 1  Budget development and execution. 2  Management, including oversight of agency performance, human capital, Federal procurement, financial management, and information technology.