childcare services for dependent children of members of the Armed Forces and civilian employees of the Department of Defense in child development centers on Department installations. 558. Report on expanding and contracting for childcare services of the Department of Defense Not later than March 1, 2018, the Secretary of Defense shall submit to the Committees on Armed Services of the Senate and the House of Representatives a report setting forth an assessment, undertaken by the Secretary for purposes of the report, of the feasibility and advisability of the following: (1) Expanding the operating hours of childcare facilities of the Department of Defense in order to meet childcare services requirements for swing-shift, night-shift, and weekend workers. (2) Using contracts with private-sector childcare services providers to expand the availability of childcare services for members of the Armed Forces at locations outside military installations at costs similar to the current costs for childcare services through child development centers on military installations. (3) Contracting with private-sector childcare services providers to operate childcare facilities of the Department on military installations. (4) Expanding childcare services as described in paragraphs (1) through (3) to members of the National Guard and Reserves in a manner that does not substantially raise costs of childcare services for the military departments or conflict with others who have a higher priority for space in childcare services programs, such as members of the Armed Forces on active duty. 559. Report on review of General Schedule pay grades of childcare services providers of the Department of Defense (a) Report required Not later than March 1, 2018, the Secretary of Defense shall submit to the Committees on Armed Services of the Senate and the House of Representatives a report on a review, undertaken by the Secretary for purposes of the report, of the General Schedule pay grades for childcare services provider positions within the