国会预算办公室的透明度：2026年计划和2025年回顾

At a Glance Transparency is a top priority for the Congressional Budget Office, and the agency continues to bol-ster its efforts to be transparent. Those efforts are intended to promote a thorough understanding ofCBO’s work, help people gauge how estimates might change if policies or circumstances differed, andenhance the credibility of the agency’s analyses and processes. In 2026, the agency will undertake a variety of activities aimed at fostering transparency, such as thefollowing: •Providing insight into the basis of its analyses by publishing new modeling tools, source code, andtechnical documentation; and•Explaining the methods it uses for its analyses in several topic areas, including national security,health care, taxation, energy, housing, and economic projections. Those efforts will build on CBO’s activities in 2025, which included testifying before Congressionalcommittees and answering Members’ questions, releasing data, publishing modeling tools and code,evaluating the accuracy of the agency’s estimates, comparing current and previous estimates, estimat-ing the effects of policy alternatives, characterizing the uncertainty of estimates, creating data visual-izations, and conducting outreach. Contents SummaryPlans for 2026Review of 2025 1 Background2 CBO’s Transparency Plans for 2026 3 Testifying and Publishing Answers to Questions3Explaining Analytical Methods3Releasing Data4Publishing Modeling Tools, Code, and Details4Analyzing the Accuracy of CBO’s Estimates5Comparing Current Estimates WithPrevious Estimates5Comparing CBO’s Estimates WithThose of Other Organizations6Estimating the Effects of Policy Alternatives6Characterizing the Uncertainty of CBO’s Estimates6Creating Data Visualizations6Conducting Outreach6 A Review of CBO’s Transparency Efforts in 20257 Testifying and Publishing Answers to Questions7Explaining Analytical Methods7Releasing Data8Publishing Modeling Tools, Code, and Details11Analyzing the Accuracy of CBO’s Estimates11Comparing Current Estimates With Previous Estimates11Comparing CBO’s Estimates With Those of Other Organizations12Estimating the Effects of Policy Alternatives13Characterizing the Uncertainty of CBO’s Estimates13Creating Data Visualizations14Conducting Outreach15 About This Document19 Transparency at CBO: Plans for 2026 anda Review of 2025 SummaryTransparency is a top priority for the Congressional basis of its analyses and promote understanding of andengagement with its work. Budget Office, and an effort the agency continues tobolster. In addition, CBO will continue a broad range oftransparency activities, including testifying beforeCongressional committees and answering Members’questions, explaining CBO’s analytical methods, pub-lishing details about its models, releasing data, creatingdata visualizations, analyzing the accuracy of the agency’sprojections, comparing current estimates with previousones and with those of other institutions, estimatingthe effects of policy alternatives, characterizing theuncertainty of estimates, and conducting outreach. Thatoutreach will involve continued daily interaction withCongress to explain the agency’s estimates and get feed-back, as well as consultation with outside experts. CBO has three goals for transparency: •Promote a thorough understanding of theagency’sanalyses through accessible, clear, and detailedcommunication; •Help people gauge how estimates might change ifpolicies or circumstances differed; and•Enhance the credibility of the agency’s analysesand processes by showing how they are groundedin data and high-quality professional researchand are informed by feedback from a range ofsubject-matter experts. This report describes projects for which the scope hasbeen fully developed and other projects that will beinitiated. In response to ongoing interest expressed by Congress inCBO’s efforts to be transparent, CBO submits an annualreport updating Congress on its transparency activities.This edition reviews CBO’s transparency plans for 2026and activities in 2025, with a particular focus on theagency’s ongoing efforts to publish its models.1A contin-ually updated list of the agency’s most recent activities isavailable atwww.cbo.gov/about/transparency. Review of 2025In 2025, CBO undertook 11 types of activities in pursuit of its goals for transparency: •Testifying and publishing answers to questions.CBO testified at five Congressional hearings andresponded to requests from Congress for publicanswers to specific questions. In addition topresenting written statements, making oral remarks,and answering questions at the hearings, the agencypublished answers to a total of 37 questions thatMembers submitted after the hearings. Plans for 2026This year, CBO is strengthening its commitment to transparency by expanding public access to the founda-tions of its work. The agency will publish new modelingtools, source code, and detailed technical documentationon its website and GitHub page. By making those m