Evidence library
Stop asserting national importance. Cite it.
The most common Request for Evidence in 2026 is national importance claimed without third-party support. Petitioners write “artificial intelligence is critical to the United States” and stop, not knowing that an officer wants a citation: a federal statistic, a strategy document, an agency saying the same thing in the government’s own voice.
An adjudicator does not need convincing that oncology matters. They need evidence tying your specific endeavor to a stated national priority. Here are 23 sources that do it. All free, all government or federally funded.
How to use a citation properly
The commonest mistake is attaching one and thinking the work is done. A source proves the field matters. Prong 1 asks whether your endeavor matters, and petitions die in the gap between those two things.
- 01
Cite the specific finding, not the document
“The NSF Science and Engineering Indicators report exists” proves nothing. “NSF reports U.S. share of global R&D fell from X% to Y% between 2010 and 2023 (Indicators 2024, ch. 4)” is evidence. Quote the number and name the chapter.
- 02
Connect the source to YOUR endeavor in the next sentence
An officer already accepts that cybersecurity matters. The citation establishes the national priority; the sentence after it must establish that your specific undertaking advances that priority. Petitions fail in the gap between those two sentences, not in the citation.
- 03
Prefer statutes and agency objectives over journalism
A congressional appropriation or a stated agency objective is the government declaring a priority. A newspaper article reporting that something is important is one outlet's view. Both can appear; only one is authoritative.
- 04
A citation does not rescue a field-level endeavor
If your endeavor is described as “advancing artificial intelligence”, a federal AI strategy document does not save it, the officer still cannot evaluate what you specifically will do. Fix the endeavor first, then cite.
- 05
Attach it as an exhibit, do not just link it
Print the relevant pages and file them as a numbered exhibit with the passage marked. An officer will not follow a URL, and an argument resting on a link they did not open is an argument they did not read.
Cross-cutting, start here whatever your field
Everyone. These establish that a priority is a national one, in the government's own words.
The controlling guidance officers apply to your petition, updated 15 January 2025.
How to use it
Read the national-importance examples and mirror their structure. It names the kinds of endeavor USCIS already accepts as important, aligning to one is far stronger than inventing a new argument.Bureau of Labor Statistics, Occupational Outlook Handbook ↗
U.S. Department of LaborFederal projections of employment, growth and shortage by occupation.
How to use it
Cite the projected growth or shortage in your occupation to show the need is documented by the government rather than asserted by you.The biennial federal report on U.S. research, workforce and competitiveness.
How to use it
The standard source for 'the United States is falling behind in X'. Quote the finding, cite the chapter.Federal agency strategic plans ↗
performance.govEvery agency's stated objectives and priority goals.
How to use it
The strongest single move available. Find the agency whose mission your endeavor touches, quote its stated objective, and show your work advances it. This is the government telling the officer what matters.Independent federal findings on what is going wrong across government.
How to use it
A GAO report documenting a problem your endeavor addresses is third-party, federal, and adversarial in tone, which is exactly why it reads as credible.
Medicine, public health and life sciences
Clinicians, biomedical researchers, health-systems and pharmaceutical work.
NIH RePORTER ↗
National Institutes of HealthEvery NIH-funded project, searchable by topic and dollar amount.
How to use it
Show federal money already flows to your problem area. Government funding is government prioritisation, stated in dollars.Official designations of where the U.S. lacks health providers.
How to use it
Essential for a physician NIW and useful for any health endeavor, a federal designation of shortage is as close to proof of need as this exists.Disease burden, mortality and public-health surveillance data.
How to use it
Quantify the problem. 'Antibiotic resistance causes N deaths annually' with a CDC citation beats any adjective.The nation's stated ten-year health objectives.
How to use it
Map your endeavor to a numbered national objective. It is a federal statement that this specific outcome matters.
Computing, AI, engineering and infrastructure
Software, AI/ML, semiconductors, cybersecurity, energy and civil infrastructure.
National Artificial Intelligence Initiative ↗
Executive Office of the President / NITRDFederal AI strategy, R&D priorities and coordination documents.
How to use it
Cite the specific priority area your work sits in rather than the existence of a national AI strategy.Federal standards and the problems they were written to address.
How to use it
If your endeavor implements or advances a NIST standard, that is a documented federal need with your name attached to it.CHIPS and Science Act programmes ↗
NIST / Department of CommerceSemiconductor and research priorities Congress funded by statute.
How to use it
A statutory priority is the strongest kind. Congress appropriating money is not an opinion.DOE national laboratory priorities ↗
Department of EnergyFederal energy and physical-science research direction.
How to use it
Useful for grid, materials, battery, fusion and computing endeavors.The sixteen sectors the U.S. designates as critical.
How to use it
If your endeavor serves a designated critical sector, say which one and cite the designation.
Business, finance and economic development
Founders, economists, fintech, supply chain and regional development work.
Census Bureau, Business Dynamics Statistics ↗
U.S. Census BureauFirm formation, job creation and business survival data.
How to use it
For entrepreneurial endeavors: show the economic contribution of the kind of firm you are building, using federal data.Small Business Administration research ↗
SBA Office of AdvocacyFederal analysis of small-business contribution to employment and growth.
How to use it
Supports job-creation arguments without relying on your own projections.Federal Reserve economic data (FRED) ↗
Federal Reserve Bank of St. LouisEssentially every U.S. economic time series.
How to use it
Quantify a trend precisely instead of describing it. A chart with a federal source beats a sentence.Federally designated distressed regions and investment priorities.
How to use it
Directly counters the 'localized benefit' finding, if the region is federally designated as needing development, benefit there is a national priority.
Education and workforce
Educators, curriculum and training work, workforce development.
National Center for Education Statistics ↗
Department of EducationFederal education outcome and attainment data.
How to use it
Document the gap your endeavor addresses using the government's own measurement of it.Employment and Training Administration ↗
Department of LaborFederal workforce development priorities and programme data.
How to use it
For reskilling and training endeavors, ties your work to a funded federal objective.
Environment, agriculture and climate
Environmental science, agriculture, water, conservation and climate work.
EPA reports and data ↗
Environmental Protection AgencyFederal environmental condition and regulatory analysis.
How to use it
Quantify environmental harm with the regulator's own figures.Agricultural economics, food security and rural development data.
How to use it
Supports food-security and rural endeavors, and helps rebut 'localized benefit' for agricultural work.The National Climate Assessment and related federal findings.
How to use it
A congressionally mandated assessment, about as authoritative as a citation gets.
A citation cannot rescue a weak endeavor. If your proposed endeavor is described at field level, “I will conduct research in machine learning”, no amount of federal strategy documents will fix it, because the officer still cannot evaluate what you specifically intend to do. Fix the endeavor first.
Every source here is free and published by the U.S. government or a federally funded body. NIWFile is not affiliated with any of them and receives nothing for linking them. Links move, if one is dead, search the publisher’s site rather than assuming the document is gone. This is not legal advice.