Congressional Budget Office Cost Estimate: S. 406, Federal Rotational Cyber Workforce Program Act of 2019 as Ordered Reported by the House Committee on Oversight and Reform on July 25, 2019 [open pdf - 31KB]
From the Document: "S. 406 would direct the Office of Personnel Management to create policies and procedures to allow federal cybersecurity professionals to temporarily move from one agency to another for up to one year. That authority would expire five years following enactment. CBO [Congressional Budget Office] estimates that implementing S. 406 would cost less than $500,000 annually over the 2019-2024 period for new regulations, staff training, and administrative expenses. Any spending would be subject to the availability of appropriated funds."
Congressional Budget Office: http://www.cbo.gov/