President Donald Trump is directing agency heads to prepare for reductions-in-force, giving them 30 days to submit reorganization plans as part of a new attempt to downsize the federal government.

Trump’s latest executive order is also aimed at further institutionalizing the Elon Musk’s “Department of Efficiency” initiative across government. Trump signed the executive order Tuesday night in the Oval Office alongside Musk.

Under the EO, the Office of Management and Budget will develop a plan to reduce the size of the government’s workforce “through efficiency improvements and attrition.”