# Defense Nuclear Security

**Agency:** Energy  
**Account:** Defense (050)  
**Source document:** Energy Programs · p. 17  
**Vintage:** President's Budget PB2027  
**Canonical URL:** https://hitchintel.com/budget/energy/defense-nuclear-security  

> **Trust:** parsed from the agency Congressional Justification. Approximate, **not summable**, verify at the cited page.

## Funding ($M)

| Fiscal year | Basis | Amount |
| --- | --- | --- |
| FY2025 | enacted | 1,084.1 |
| FY2026 | enacted | 1,245.4 |
| FY2027 | request | 1,305.8 |

## Energy discretionary budget authority (OMB PBDB — authoritative)

FY2027 $36.30B, FY2026 $58.20B. This is the agency total, not a sum of the parsed lines.


## What this funds

Leads and implements NNSA's security program — protective forces, physical and cyber security systems, and counter-drone capabilities — to protect personnel, facilities, nuclear weapons, and special nuclear material across the nuclear security enterprise.


**Where it sits:** Civilian / Non-Defense › Energy › Energy Programs › Defense (050) › Weapons Activities


*HitchAI is an independent intelligence service, not affiliated with the U.S. government. Civilian line dollars are parsed from agency Congressional Justifications and are approximate.*