The key points for the Chemists are:
The FR will be posted on the NFPA website by 22 March 2022. Anyone can sign up to receive alerts from NFPA for any document.
For NFPA 306 the Doc Info page link is:
Anyone wishing to receive alerts should click the “receive Email Alert” link on that page (located right above the document title).
The closing date for Public Comment on the First Draft is 31 May 2022 – 23:59:59 Eastern Time. Comments must be submitted by that date/time. Here’s the link to the Next Edition page where the First Draft can be viewed and the link to submit a Public Comment can be found.