| system_name,role,tier,current_count_approx,proposed_addition,cbo_cost_usd_b,source_document,notes | |
| THAAD,Upper-tier terminal defense,Terminal (upper),~12 batteries,Surge production,included,CRS IF13115 (Doc 12),Core Golden Dome component; depleted post-Epic Fury | |
| Patriot PAC-3 MSE,Lower-tier terminal defense,Terminal (lower),~40 batteries,Expansion,included,CRS IF13115 (Doc 12),Existing NATO-integrated system; lower-tier complement to THAAD | |
| SM-3 Block IIA (Aegis),Midcourse intercept,Midcourse,~40 VLS ships,New Aegis Ashore sites,included,CRS IF13115 (Doc 12),Ship-based and shore-based; covers midcourse phase | |
| SM-6 (Aegis),Terminal/boost-phase,Terminal,~40 VLS ships,TBD,included,CRS IF13115 (Doc 12),Dual-role: anti-air and anti-ballistic missile terminal defense | |
| Ground-Based Interceptors (GBI),Strategic midcourse (ICBM),Strategic,44 (Fort Greely/Vandenberg),20 new silos proposed,included,CRS IF13115 (Doc 12),GMD program; targets ICBM-class threats only; not tested vs MRBMs | |
| Space-Based Sensors (proposed),Multi-tier tracking layer,Space,0 (proposed),New constellation,included,CRS IF13115 (Doc 12),Golden Dome expansion; provides birth-to-death track custody | |
| Directed Energy (proposed),Boost-phase intercept,Boost,0 (experimental),R&D program,included,CRS IF13115 (Doc 12),Laser/HPEL concepts; not operationally deployed; long-term investment | |
| TOTAL (CBO 20-year estimate),All Golden Dome components,All tiers,,,831,CBO via CRS IF13115 (Doc 12),$831B CBO 20-year cost estimate for full Golden Dome for America architecture | |