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May 31–June 3, 2026
Denver, CO|Sheraton Denver
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WIPP: Lessons in transportation safety
As part of a future consent-based approach by the federal government to site new deep geologic repositories for nuclear waste, local communities and states that are considering hosting such facilities are sure to have many questions. Currently, the Waste Isolation Pilot Plant in New Mexico is the only example of such a repository in operation, and it offers the opportunity for state and local officials to visit and judge for themselves the risks and benefits of hosting a similar facility. But its history can also provide lessons for these officials, particularly the political process leading up to the opening of WIPP, the safety of WIPP operations and transportation of waste from generator facilities to the site, and the economic impacts the project has had on the local area of Carlsbad, as well as the rest of the state of New Mexico.
For more details on any of the standards below, please contact standards.
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Before work on a draft standard can begin, a Project Initiation Notification System (PINS) form must be approved and submitted to the American National Standards Institute (ANSI). The following projects have PINS forms in the development and/or approval process:
The following projects have approved PINS forms and are in development:
This section provides notice of public review on proposed draft new American National Standards, and on proposals to revise, reaffirm or withdraw approval of existing American National Standards. Comments in connection with a draft standard must be submitted in writing/electronically (in accordance with ANS procedures) no later than the last day of the specified comment period. Comments shall be specific to the section(s) of the standard under review and include sufficient detail to enable the reader to understand the commenter's position, concerns and suggested alternative language, if appropriate.
To request an electronic copy contact orders@ans.org | Send comments to standards@ans.org
Single copy price: $50.00
The following drafts are open for public comment:
ANS-2.36-202x, Accident Analysis for Aircraft Crash into Reactor and Nonreactor Nuclear Facilities (proposed new standard)
This standard’s broad reactor and nonreactor nuclear facility applicability provides the user the requirements and guidance to evaluate and assess the significance of aircraft crash risk on nuclear facility safety and provides a framework of stepwise increases in analytical sophistication aimed to demonstrate that an aircraft crash either does or does not exceed a risk level of concern equivalent to other generally applied sources of risk from the operation of nuclear facilities.
Comment deadline: June 20, 2026 (comments received after this date will not be accepted)
ANS-6.4-202x, Nuclear Analysis and Design of Concrete Radiation Shielding for Nuclear Power Plants (revision of ANSI/ANS-6.4-2006; R2021)
A revision is needed to address hybrid transport methods and to add MicroShield and SCALE to the appendix listing computer codes. A revision will also address the presence of hydrogen content in serpentine ore and the minimum neutron energy to be considered for concrete degradation. Lastly, clarification will be included to provide additional considerations when concrete serves the dual role of shield and structural element.
Comment deadline: June 22, 2026 (comments received after this date will not be accepted)
Projects at ballot have completed drafts that have been issued for subcommittee or consensus committee ballot/concurrent public review. Before proceeding, all comments must be considered. Multiple ballots may be needed before a draft is approved. The following draft standards are in the process of approval/comment resolution:
The following new or revised standards have recently received ANSI approval:
Last modified April 28, 2026, 7:42am CDT
