Proposed Action & Alternatives

The United States Marine Corps in cooperation with the Federal Aviation Administration (FAA) proposes to establish permanent Special Use Airspace (SUA) and modify existing SUA at Marine Air Ground Task Force Training Command, Marine Corps Air Ground Combat Center, Twentynine Palms, California (“Combat Center”). The primary purpose of the FAA’s SUA program is to establish/designate airspace in the interest of national defense, security, and/or welfare. SUA is designed to ensure the safety of all users of the airspace. The types of SUA are Restricted Areas (RAs), Military Operations Areas (MOAs), Warning Areas, Prohibited Areas, Alert Areas, Controlled Firing Areas, and National Security Areas. In addition to SUA, there is often an Air Traffic Control Assigned Airspace (ATCAA) from Flight Level 180 through Flight Level 600 (18,000 to 60,000 feet above mean sea level [MSL]) in which Air Traffic Control (ATC) plans for military operations. The RAs, MOAs, and ATCAAs are the only type of airspace discussed in detail and analyzed in the EA. Visit the Combat Center website for additional information on SUA at the Combat Center.

The Proposed Action is to establish new permanent SUA areas and to modify the lateral boundaries, component sectors, and/or altitude limits within existing SUA areas to support ongoing daily training activities at the Combat Center. The Proposed Action includes two action alternatives and a No-Action Alternative.

Alternative 1 would establish new permanent SUA to the west and east of existing Combat Center SUA and modify existing Combat Center SUA along the southern and eastern boundaries of the Combat Center. Alternative 2 is similar to Alternative 1, but does not include establishing new permanent SUA to the east of the Combat Center. Both action alternatives would allow the Combat Center to support ongoing daily training activities 365 days per year in accordance with pre-deployment readiness directives of Marine Corps Order 3502.6. No change in current levels of use of the airspace over the Combat Center is proposed or anticipated as part of this action. No change in ordnance use or ground-based training activities at the Combat Center is proposed or anticipated as part of this action. The No-Action Alternative would make no changes to existing permanent airspace in the vicinity of the Combat Center.


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Alternative 1
Alternative 2

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