The first opportunity to comment on a proposed ANS is when the sponsoring ASD submits a Project Initiation Notification (PINS), and members of the general public can then review and comment on the proposal following the steps below:
Identify a proposed standard (or a revision to a current ANS) that you might want to contribute to and find contact information for the sponsoring ASD
Review the proposal, and if you think it might conflict with or duplicate another proposed or approved ANS, submit your comments to the ASD in writing within the 30-day PINS comment period published in Standards Action, in accordance with the rules set for PINS requirement
Check Standards Action weekly and review the "Call for Comments" section.
Identify the draft standard that you'd like to review and comment.
Check how to obtain the draft: Some ASDs post public review drafts online during an open comment period, while others charge a fee to obtain a copy of a draft to defray development and production costs (and there may be other options as well).
Note (and adhere to) the comment deadline, which will be 30, 45, or 60 days from the date of the announcement in Standards Action.
Submit comments directly to the ASD following its specific process and guidelines.
Note that ANSI-Accredited Standards Developers (ASDs) have different names for their consensus bodies, including technical committee (TC), voting group, and others.
ASDs have procedural requirements and participation policies for their consensus bodies, so you should contact the ASD to obtain a copy of its current procedures and apply to the ASD directly for consensus body (voting) membership.