We recommend that the PBS Regional Commissioner for the National Capital Region take appropriate action to address the issues associated with oversight of the O&M building services contract. At a minimum, PBS NCR should: ensure that the “After-Hours Labor Estimate” contains valid, reliable data and that it reflects actual cost and schedule conditions; require Honeywell to provide an updated estimate based on actual performance and renegotiate the contract; and perform a procurement contract review to evaluate the effectiveness of its policies and make improvements; conduct an assessment to: (1) identify staff required to be present during the after- hours shift, (2) enforce the statement of work, and (3) monitor staffing of the after- hours shift; and perform a comprehensive review of the after-hours staffing from August 2015 to the present, determine the total amount of overpayment for shifts that were understaffed and inadequately staffed, recover the overpayment from Honeywell, and return any overpayment to FDA.