A total of 213 C-17s have been procured through FY2009, including eight that were procured in the FY2009 supplemental appropriations act (H.R. 2346/P.L. 111-32 of June 24, 2009). The Administration's proposed FY2010 defense budget proposes to end C-17 procurement and does not request any funding for the procurement of additional C-17s. The Administration argues that enough C-17s have now been procured to meet future operational needs. Supporters of procuring additional C-17s in FY2010 believe additional C-17s will be needed to meet future operational needs. The issue of how much airlift capability will be needed in the future is currently being examined in a congressionally mandated study being done by the Institute for Defense Analyses (IDA) and in a separate Department of Defense (DOD) study called the Mobility Capabilities and Requirements Study 2016 (MCRS-16), which is due to be completed by the end of 2009. FY2010 defense authorization bill: The House and Senate Armed Services Committees, in their markups of the FY2010 defense authorization bill (H.R. 2647/S. 1390), recommended no funding for the procurement of additional C-17s. Section 134 of H.R. 2647 would require the Secretary of the Air Force, in coordination with the Director of the Air National Guard, to submit to the congressional defense committees, at least 120 days before a C-5 airlift aircraft is retired, a report on the proposed force structure and basing of C-5 and C-17 aircraft. Section 135 of H.R. 2647 would amend 10 USC 8062(g)(1) to state that, effective October 1, 2009, the Secretary of the Air Force shall maintain a total inventory of C-5s and C-17s of not less than 316 aircraft. Assuming the retention of the current force of 111 C-5s, this provision would appear to support a C-17 force of 205 C-7s' the number procured through FY2008.