OASIS has announced the 60-day public review starting today, August 15, 2013, ending Tuesday, October 15, 2013:

http://lists.oasis-open.org/archives/ubl/201308/msg00000.html

Comments may be submitted to the TC by any person through the use of the OASIS TC Comment Facility as explained in the instructions located via the button labeled "Send A Comment" at the top of the TC public home page, or directly at:

http://www.oasis-open.org/committees/comments/index.php?wg_abbrev=ubl

After the public review there will be an OASIS-wide membership vote to ratify the document as an OASIS Standard.