Appendix A: 2030 Planning Document Map

The Census Bureau does not describe the 2030 Census in a single planning document. The Operational Plan sits within a broader set of strategies, roadmaps, research materials, test plans, and decision memoranda that will continue to evolve through the decade.

The documents below are the core planning materials advocates are most likely to need. This is not an exhaustive inventory of Census documentation. Research reports, test results, procurement records, Federal Register notices, technical specifications, and other materials discussed elsewhere in this guide may be equally important for particular issues.

One way to think about the hierarchy is:

Strategy documents establish the overall direction.
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Operational Plan baselines progressively define the census design.
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Detailed Operational Plans will explain individual operations at a more granular level.
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Research, testing, requirements, and decision memoranda provide the evidence and rules underneath those plans.

2030 Census Strategy

What it covers: The highest-level statement of the mission, vision, goals, objectives, and principles for planning and conducting the 2030 Census. It establishes the broad themes that guide the rest of the program.

Why advocates should care: It provides the broad rationale for modernization, greater use of existing Census capabilities, partnerships, administrative data, and other changes. It is useful for evaluating whether later operational decisions remain consistent with the principles Census originally announced.

Publication date: April 8, 2024.

Next expected update: Census has not announced a regular revision schedule for the Strategy itself. The more important updates will come through successive Operational Plan baselines and Detailed Operational Plans.

Key unanswered questions: How will broad commitments to accuracy, efficiency, trust, and inclusion be balanced when they conflict? Which principles will control when departmental policies or funding constraints require changes to the original strategy?

2030 Census Operations Strategy and Roadmap

What it covers: The process Census will use to move from research and broad concepts to an integrated operational design. It describes planning phases, requirements development, testing, architecture, Operational Plan baselines, and other milestones.

Why advocates should care: This is the best document for understanding when decisions are made and when research, requirements, tests, and detailed plans are supposed to influence them. It is particularly important for identifying advocacy windows before decisions become operationally difficult to change.

Publication date: April 8, 2024.

Next expected update: No scheduled revision of the roadmap itself has been announced. Its milestones are being implemented through the Operational Plan process, including Baseline 2, initial Detailed Operational Plans, the 2028 Dress Rehearsal, and Baseline 3.

Key unanswered questions: Which technical decisions will be made before they appear in public plans? When will requirements become available for outside review? How will Census document changes to the process or schedule?

2030 Census IT Strategy and Roadmap

What it covers: The overall approach to systems, software, hardware, services, security, staffing, infrastructure, enterprise capabilities, and integration needed to support the census. Census describes it as the highest-level IT policy for the 2030 program.

Why advocates should care: Most substantive census rules will ultimately be implemented through technology. The roadmap is particularly relevant to enterprise-system dependence, cybersecurity, cloud infrastructure, integration, contractor reliance, and the risk that technical decisions become difficult to reverse.

Publication date: April 8, 2024.

Next expected update: No regular public revision schedule has been announced. More specific IT decisions should become visible through procurements, requirements, testing, Detailed Operational Plans, and later Operational Plan baselines.

Key unanswered questions: Which decennial functions will rely on enterprise versus purpose-built systems? How will Census maintain flexibility for late design changes? What safeguards will apply to particularly sensitive linked data such as the Person Characteristic Frame?

2030 Census Acquisition Strategy

What it covers: Census’s approach to obtaining the goods and services needed for 2030, including acquisition planning, use of existing government and enterprise contract vehicles, competition, procurement lead times, and lessons from 2020.

Why advocates should care: Contracts can create practical deadlines earlier than the dates shown in public operational plans. Once requirements have entered a solicitation and a system is being built, changing the underlying policy can become significantly more expensive.

Publication date: April 8, 2024.

Next expected update: No scheduled replacement strategy has been announced. Current implementation can be followed through Census’s continuously updated 2030 procurement page and individual solicitations and awards.

Key unanswered questions: When will remaining major acquisitions occur? Which functions will be provided through enterprise contracts rather than decennial-specific procurements? Are communications, printing, field, and IT capabilities being acquired early enough for meaningful testing?

2030 Census Stakeholder Engagement Strategy

What it covers: Census’s framework for identifying stakeholders, communicating with them, and obtaining external input throughout the census lifecycle.

Why advocates should care: It establishes the intended process through which affected communities and outside experts are supposed to influence the census. It is an important benchmark now that the formal Census advisory committees that existed when the strategy was written have been eliminated.

Publication date: April 8, 2024.

Next expected update: Census has not announced a scheduled revision. Advocates should watch for a replacement or supplemental engagement plan reflecting the changed advisory environment and later stages of the census design.

Key unanswered questions: How will Census replace the functions previously provided by standing advisory committees? How will stakeholders know which decisions are open for input and when that input must arrive? How will Census document what it heard and how it responded?

2030 Census Operational Plan, Baseline 1

What it covers: The first comprehensive description of the planned 2030 Census operational design. It organizes the census into seven concept areas and describes the operational areas and activities needed to establish where to count, enumerate the population, evaluate quality, produce results, and provide the management, systems, and infrastructure that support the census.

Why advocates should care: This is the central document for understanding what Census currently plans to do. It is also deliberately high-level. Many of the consequential thresholds, specifications, data sources, workflows, and final operational choices discussed in this guide remain unresolved.

Publication date: July 23, 2025.

Next expected update: Census currently plans to release Baseline 2 in summer 2027, incorporating lessons from the 2026 Census Test and identifying the operations to be tested for end-to-end cohesion in the 2028 Dress Rehearsal. Baseline 3 is planned for summer 2029.

Key unanswered questions: How will broad concepts such as In-Office Enumeration, the Person Characteristic Frame, targeted fieldwork, multilingual response, Coverage Estimation, and disclosure avoidance be translated into specific rules? Which elements of Baseline 1 will change because of research, testing, new Commerce policies, funding, or other developments?

Detailed Operational Plans

What they cover: These forthcoming plans will describe individual operations at a more granular level than the Operational Plan, providing information needed for program integration and solution engineering.

Why advocates should care: For many issues in this guide, these may become the most important public planning documents. They should reveal substantially more about workflows, interfaces, responsibilities, requirements, and operational rules than Baseline 1 does.

Publication date: Not yet published.

Next expected update: Census currently plans to release the initial Detailed Operational Plans in early 2028, before the Dress Rehearsal, and refined versions in late 2029 after Dress Rehearsal results are incorporated. “As was” versions documenting what actually occurred are planned for early 2032.

Key unanswered questions: How much technical detail will the plans contain? Will they be released early enough to influence the Dress Rehearsal? Which important thresholds and algorithms will remain in lower-level requirements or specifications rather than appearing in the public plans?

2030 Census Memorandum Series

What it covers: The Memorandum Series is the official running record for major program and policy decisions and reports documenting research, testing, evaluations, and assessments. Census established the series specifically to document significant decisions, actions, accomplishments, and historical changes throughout the 2030 program.

Why advocates should care: The Operational Plan is updated only periodically. The Memorandum Series should provide a more continuous record of important decisions made between baselines and should be one of the first places advocates look when a major aspect of the design changes.

Publication date: Series established January 22, 2024; new memoranda are added as qualifying decisions and reports occur.

Next expected update: Ongoing. Census says a memorandum will be added for major program decisions, major policy changes, and reports documenting 2030 research, tests, evaluations, and assessments.

Key unanswered questions: How consistently will Census apply its publication criteria? Will consequential technical decisions appear in the series even when they do not rise to the level of a major policy announcement? How promptly will research and test findings be published?

Research and Testing Materials

What they cover: Census’s Research and Testing program includes the early Enhancement Area research, continuing research and small-scale tests, the 2026 Census Test, the 2028 Dress Rehearsal, and disclosure avoidance research. Census maintains both a Research Project Explorer and a central Research and Testing webpage.

Why advocates should care: These materials provide the evidence that should support changes between Operational Plan baselines. They are also where advocates can assess whether important design assumptions have actually been tested and whether tests include the populations most likely to expose weaknesses in a proposed method.

Publication date: Ongoing throughout the decade. Census reported completing more than 50 early Enhancement Area research projects during the Design Selection Phase in 2024; small-scale testing is planned to continue through 2029.

Next expected update: Continuing test plans, findings, and research releases, followed by the 2028 Dress Rehearsal. Census says updates to research and testing will be posted throughout the decade.

Key unanswered questions: Which completed studies will receive full public reports? How were more than 500 preliminary recommendations from the early research program accepted, modified, deferred, or rejected? Which questions removed from the reduced 2026 Census Test will be answered through other research before Baseline 2?

Reading the Documents Together

No single document should be treated as the final statement of the 2030 Census design. A broad commitment in the Strategy may become an operational area in Baseline 1, a specific operation in Baseline 2, a workflow in a Detailed Operational Plan, and ultimately a threshold or algorithm contained in a requirement or technical specification.

For advocates, the most important task is therefore to follow the movement from one level to the next. When a later document makes a commitment more specific, ask what evidence produced the change. When a previously announced commitment disappears, ask why. And when an important decision appears to have been made without showing up in the public planning record, identify the underlying research, requirement, memorandum, or specification that contains the real rule.

The document map will continue to change through 2030. It should be treated as a guide to where decisions are likely to appear, not as a substitute for monitoring the decisions themselves.