CBO finds that maintenance for Navy destroyers and amphibious warfare ships has often taken longer and required more labor than planned. Those delays affect the fleet's readiness and reflect aging ships, late inspections, and other factors.
CBO Blog
The federal budget deficit totaled $439 billion in October and November 2025, the first two months of fiscal year 2026, CBO estimates. That amount is $185 billion less than the deficit recorded during the same period last fiscal year.
CBO would benefit from additional data and research that would broaden and deepen the agency's basis of assessment for modeling the effects of permitting-related legislative proposals and administrative actions.
CBO is looking for new research to help explain the unexpectedly rapid growth of projected per-enrollee costs in bids from Medicare Part D plans.
Tariffs have changed frequently throughout 2025. CBO has regularly updated Congress about how those changes affect projected tariff revenues. This blog post is the latest in that series.
In analyzing the availability and use of aircraft by the U.S. Coast Guard from 2006 to 2024, CBO found that total flying hours have decreased, especially for H-65 helicopters.
CBO's website features easy-to-use modeling tools for exploring alternative legislative and policy scenarios. When practicable, CBO posts data, computer code, and documentation associated with its models on the web-based platform GitHub.
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Transparency is an aspect of CBO's work that the agency continually strives to improve—and one about which it often receives questions. CBO's Director addresses some of the most common questions about the agency's approach to transparency.
CBO's Director, Phillip Swagel, testifies before the House Committee on the Budget.
Aditi Sen, Chief of CBO's Health Policy Studies Unit, testifies before the Senate Committee on Health, Education, Labor, and Pensions.