unless such awards or incentive fees are consistent with section 16.401(e)(2) of the Federal Acquisition Regulation. 627. (a) None of the funds made available under this Act may be used to pay for travel and conference activities that result in a total cost to an Executive branch department, agency, board, or commission funded by this Act of more than $500,000 at any single conference unless the agency or entity determines that such attendance is in the national interest and advance notice is transmitted to the Committees on Appropriations of the House of Representatives and the Senate that includes the basis of that determination. (b) None of the funds made available under this Act may be used to pay for the travel to or attendance of more than 50 employees, who are stationed in the United States, at any single conference occurring outside the United States unless the agency or entity determines that such attendance is in the national interest and advance notice is transmitted to the Committees on Appropriations of the House of Representatives and the Senate that includes the basis of that determination. 628. None of the funds made available by this Act may be used for first-class or business-class travel by the employees of executive branch agencies funded by this Act in contravention of sections 301–10.122 through 301–10.125 of title 41, Code of Federal Regulations. 629. In addition to any amounts appropriated or otherwise made available for expenses related to enhancements to www.oversight.gov, $850,000, to remain available until expended, shall be provided for an additional amount for such purpose to the Inspectors General Council Fund established pursuant to section 11(c)(3)(B) of the Inspector General Act of 1978: Provided, That these amounts shall be in addition to any amounts or any authority available to the Council of the Inspectors General on Integrity and Efficiency under section 424 of title 5, United States Code. 630. None of the funds made available by this Act may be obligated on contracts in