# Defense Nuclear Nonproliferation R&D

**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-nonproliferation-r-d  

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

## Funding ($M)

| Fiscal year | Basis | Amount |
| --- | --- | --- |
| FY2025 | enacted | 777.9 |
| FY2026 | enacted | 808.8 |
| FY2027 | request | 819.0 |

## 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

Advances technical capabilities to detect and characterize foreign nuclear weapons activities, warhead stockpiles, and nuclear material diversion, and develops nuclear forensics and detection sensors using the National Laboratories and universities.


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


*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.*