International Deep Space Standards: NASA web page

Page: https://www.nasa.gov/international-deep-space-standards/. No date on the page. Fetched 2026-10-01T18:49:39Z. File: sources/linked/nasa-gov-international-deep-space-standards.md. Indirect evidence of date: the Docking standard's document link is https://www.nasa.gov/wp-content/uploads/2026/01/m2m-idss-idd-rev-g-clean-1-23-2026.pdf, so the page was changed in or after January 2026. That evidence comes from a document link, not an image upload path (the rule of open question 70 speaks of image paths).

Summary. NASA's list of the "international deep space standards adopted by NASA's Moon to Mars program and for Gateway". It is the page the 2025 Architecture Update points to (Update, p. 15). Nine standards in two groups: four "Moon to Mars Standards" (Avionics, Communications, Power, Software), which apply "throughout the cis-lunar architecture (including Gateway)", and five "Gateway Standards" (Docking, ECLSS, Rendezvous, Robotics, Thermal), which apply "specifically across Gateway elements and visiting vehicles". Each has a revision and date, from "Baseline – March 2019" to "G – August 2025". The topic's home is RT-7 Interoperability.

What the page says

Purpose ("International Deep Space Standards"). "These international interoperability standards — developed in collaboration with the international community — define interfaces and environments to facilitate cooperative deep space exploration endeavors. These standards focus on priority topics for the early phases of exploration planning; they are not intended to dictate design features beyond interfaces."

The two groups. "NASA adopts Gateway standards to ensure interoperability specifically across Gateway elements and visiting vehicles; Moon to Mars Standards are applicable throughout the cis-lunar architecture (including Gateway)." Anyone "from the global spaceflight community may provide comments or feedback on these standards" through a comment form at the foot of the page (the form itself was not captured).

The nine standards, in the page's order, with its revision line and description:

Group, as printed	Standard	Revision, as printed	What it covers, in the page's words	Document hosted at
"Moon to Mars Standards"	Avionics	"Baseline – March 2019"	"basic common design parameters that allow developers to independently design compatible Avionics systems. Specifies data link protocols and physical layer options"	internationaldeepspacestandards.com
	Communications	"B – April 2024"	"the functional, interface and performance standards necessary to support interoperable and compatible communications between spacecraft, ground infrastructure, other space and surface vehicles. (Adopted by the agency in 2024 through the Architecture Concept Review process.)"	internationaldeepspacestandards.com
	Power	"A – July 2022"	"bus voltage, power quality, and grounding approaches to ensure commonality, reliability, interchangeability, and interoperability for electrical load applications between space application power systems"	internationaldeepspacestandards.com
	Software	"Baseline – September 2020"	"basic data interfaces that allow developers to independently design compatible cislunar and deep space spacecraft software systems"	internationaldeepspacestandards.com
"Gateway Standards"	Docking	"G – August 2025"	"The International Docking System Standard (IDSS) Interface Definition Document (IDD)* Establishes a standard docking interface to enable collaborative endeavors between the international space fairing community while also supporting possible crew rescue operations"	www.nasa.gov (uploads 2026/01)
	ECLSS	"Baseline – March 2019"	"basic common design performance parameters to allow developers to independently develop compatible life support systems"	internationaldeepspacestandards.com
	Rendezvous	"Baseline – March 2019"	"basic common design parameters to allow developers to independently design compatible rendezvous operations"	internationaldeepspacestandards.com
	Robotics	"Baseline – March 2019"	"a set of common design parameters to allow module, visiting vehicle, and on-orbit relocatable or replaceable unit providers to design robotic system compatible elements"	internationaldeepspacestandards.com
	Thermal	"Baseline – August 2019"	"fluids to be employed in connected active external and/or internal coolant loops, and requirements for coldplates that interface directly to those coolant loops"	internationaldeepspacestandards.com

The Docking entry's asterisk points to a footnote: "visit the IDSS at https://www.internationaldockingstandard.com/ for more information about the IDD", a third address beside the two below. The documents themselves are not among the wiki's sources.

Against the architecture documents

These comparisons are the wiki's.

• The 2025 Architecture Update (p. 15). "NASA maintains a webpage that captures the standards adopted by NASA's Moon to Mars program and for Gateway, NASA's lunar-orbiting outpost. As the agency adopts new standards, they will appear on this page," with this page's address. Its nine badges are this page's nine, in the same two groups. The names differ as printed: the Update's "Moon to Mars Architecture Standards" and "Additional Gateway Standards" against this page's "Moon to Mars Standards" and "Gateway Standards", and the Update's "Life Support" badge against this page's "ECLSS". The Update's purpose sentences are nearly this page's: it adds an opening sentence and "and industry partners", and says "These standards" where this page says "These international interoperability standards".
• Adoption years against revision dates. The Update shows Communications "Adopted 2024" and Avionics, Software and Power "Adopted 2025"; the January 2026 workshop deck says the same (slide 16). This page states an adoption year only for Communications ("Adopted by the agency in 2024 through the Architecture Concept Review process"). For the other three it gives only the document's revision date, from 2019 to 2022. That is an omission, not a conflict: the standards were written years before the architecture adopted them. No source gives an adoption year for the five Gateway standards.
• ADD Rev C (p. 99). "Currently, nine International Deep Space Interoperability Standards exist and are refined as needed. Two additional standards include identified forward work to be addressed." This page shows nine. The ADD's second sentence can be read as two of the nine or as two beyond them; this page shows no tenth or eleventh standard and marks none as having forward work, so it doesn't settle which.
• The two addresses (open question 30). ADD Rev C's footnote 35 (p. 99) cites https://www.internationaldeepspacestandards.com; NASA's Supplemental Reading page links the same site (source page); the Update links this page. This page is the list and the other site hosts eight of the nine documents. Docking's document is on nasa.gov.
• Names the ADD uses. The ADD names three standards in full: the "International Communication(s) System Interoperability Standard" (pp. 65, 100), the "International Space Power System Interoperability Standards" and the "International External Robotic Interface Interoperability Standards" (pp. 99–100). This page uses the short names (Communications, Power, Robotics). The document file names carry "ICSIS" (M2M-30202-ICSIS_RevB_Final.pdf) and "ISPSIS" (ISPSIS-RevA-20220727-2.pdf); the Robotics file is robotic_baseline_final_3-2019.pdf.
• Robotics. The ADD says the robotic interface standard "currently only addresses robotic attachments in a microgravity environment" and needs work for the lunar and Martian surfaces (p. 100). This page's description (module, visiting vehicle and "on-orbit" replaceable unit providers) is consistent with that, and the standard is in the Gateway group.
• Docking. The page's docking standard (IDSS) is a Gateway standard. The ADD's "Lunar Surface Docking system" for mating two pressurized surface systems is listed as an open opportunity (p. 100); the page has no surface docking standard. See RT-7.
• The January 2026 workshop deck (slide 25) names the same nine under "International Standards (International Deep Space Interoperability Standards)", with "ECLSS" as here, beside seven "Lunar Surface Specifications (not yet publicly available)". This page lists no lunar surface specification (deck's source page).

Moon Base. The page doesn't mention the Moon Base.

Oddities

• The page's main heading is split in the text layer ("#" on one line, "Standards" on the next).
• "space fairing community" (Docking), as printed.
• Communications Rev B is dated April 2024, but its file was uploaded in March 2025 (uploads/2025/03/); the other seven files on the .com site are in uploads/2024/02/.

Related pages

RT-7 Interoperability · Gateway · SCaN Networks (the communications standard in the ADD) · 2025 Architecture Update · Supplemental Reading page