NASA approved a revised digital engineering acquisition handbook on October 26, 2026, expanding its guidance for obtaining engineering data and models through procurement. NASA-HDBK-1004A connects decisions about information formats, access, interoperability, and reuse with the acquisition documents that define a contractor’s deliverables.
The Office of the Chief Engineer publishes the handbook as practical guidance. Its purpose is to help programs specify engineering information that can support decisions throughout a system’s life, from development through operations. Interoperability means that information can be exchanged and used across different tools and organizations.
Turning Data Expectations Into Contract Language
The handbook distinguishes its recommendations from enforceable acquisition terms. Programs select and tailor recommended language for incorporation into statements of work, data requirements descriptions, solicitations, contracts, or other governing instruments. The resulting instrument establishes the applicable obligation.
A statement of work describes the work being purchased. A data requirements description specifies information to be delivered. Together, those documents can connect an engineering activity with the records, models, and other data NASA receives from it.
Revision A consolidates recommended contract language into an Appendix A selection matrix. That arrangement brings the sample provisions into one reference location rather than leaving them distributed through the guidance.
What Revision A Adds
The revision history identifies new material on stakeholder participation, questions for developing data requirements, and lessons learned. It also updates references and reorganizes material from earlier appendices into the main text.
Another addition addresses the organization of datasets and tables for large language models. The handbook discusses machine-readable presentation as part of engineering-information exchange. It also removes six pages of sample XML from a requirements-exchange template, explaining that commercial tools can export the relevant interoperability formats.
Engineering information has direct operational uses. New Space Economy’s account of Artemis II anomaly tools describes how searchable component histories, failure analyses, and electrical-system information supported flight-time investigations. That example shows the kinds of connected records an acquisition process can preserve for later engineering work.
The revised handbook provides a common reference for turning those information needs into selected, project-specific deliverables. Its contract-language matrix supplies the acquisition wording, and the governing contract or agreement determines which provisions apply.
