Code of Federal Regulations Title 41. Public Contracts and Property Management § 41.301–74.9?

Yes, if the head of your agency makes a written determination on an individual case basis that waiver of the requirement to use approved accommodations is necessary in the public interest for a particular event. Your agency head may delegate this waiver authority to a senior agency official or employee who is given waiver authority with respect to all conferences sponsored or funded, in whole or in part, by your agency.