NFM 2021


Welcome to the 13th NASA Formal Methods Symposium

NFM 2021


May 24-28, 2021

Proceedings of the 13th International Symposium on NASA Formal Methods (NFM 2021) are now available through this link.

Call for Papers

The widespread use and increasing complexity of mission-critical and safety-critical systems at NASA and in the aerospace industry require advanced techniques that address these systems' specification, design, verification, validation, and certification requirements. The NASA Formal Methods Symposium (NFM) is a forum to foster collaboration between theoreticians and practitioners from NASA, academia, and industry. NFM's goals are to identify challenges and to provide solutions for achieving assurance for such critical systems.

New developments and emerging applications like autonomous software for Unmanned Aerial Systems (UAS), UAS Traffic Management (UTM), advanced separation assurance algorithms for aircraft, and the need for system-wide fault detection, diagnosis, and prognostics provide new challenges for system specification, development, and verification approaches. Similar challenges need to be addressed during development and deployment of on-board software for both spacecraft and ground systems.

The focus of the symposium will be on formal techniques and other approaches for software assurance, including their theory, current capabilities and limitations, as well as their potential application to aerospace, robotics, and other NASA-relevant safety-critical systems during all stages of the software life-cycle.

The meeting will be comprised of invited talks by leading researchers and practitioners, and more specialized talks based on contributed papers.

The NASA Formal Methods Symposium is an annual event organized by the NASA Formal Methods (NFM) Research Group, comprised of researchers spanning six NASA centers. NFM2021 is being organized by the NASA Langley Formal Methods Team, with help and support from the NASA Aeronautics Research Institute (NARI).

Important dates


There are two categories of submissions:

The submitted papers should not exceed 15 pages for regular papers and 6 pages for short papers, including tables and figures, but excluding bibliography and clearly marked appendices. The papers should be self-contained, as appendices will not be included in the published proceedings. In addition to appendices, authors are encouraged to make available any other supplementary material supporting the claims made in the paper, such as proof scripts or experimental data, as the availability and reproducibility of these artifacts may be considered by reviewers in scoring.

All papers must be in English and describe original work that has not been published or submitted elsewhere.

All submissions will be reviewed by at least three members of the Program Committee in a single-blind reviewing format.

Papers will appear in the Formal Methods subline of Springer's Lecture Notes in Computer Science (LNCS), and must use LNCS style formatting.

Authors of selected best papers will be invited to submit an extended version to a special issue in Springer's Innovations in Systems and Software Engineering: A NASA Journal .

Papers must be submitted in PDF format at the EasyChair submission site:


Conference Chairs

Program Committee Chairs

Program Committee


The symposium will be co-located with the 6th Workshop on Formal Integrated Development Environment (F-IDE 2021) .


Registration is now open. Please visit to register for NFM2021.


UPDATE (December 2020): The symposium will be held fully virtually. We will publish instructions regarding the virtual platform we will use closer to the date of the symposium.


The NASA Formal Methods Symposium is an annual event organized by the NASA Formal Methods (NFM) Research Group, comprised of researchers spanning six NASA centers. The symposium originated from the earlier Langley Formal Methods Workshop series.

List of past NFM events: