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Interim Revision Announcements (IRAs)

IRAs are published in Pharmacopeial Forum (PF) as proposed IRAs. After a 90-day notice and comment period and approval by the relevant USP Expert Committee, IRAs are posted as official text in this location of the USP website, and are incorporated into the next available official publication (USP–NF or Supplement) at which time the posting may also be found in the Accelerated Revision History. Official IRAs are no longer published in PF. The PF posting dates, comment deadlines and IRA posting and official dates are outlined in the chart below.

PF

Proposed IRA Posting
Date in PF

Public Comment Due Date

Final IRA Posting Date on Web and USPNF.com

IRA Official Date

46(3) May 1, 2020 July 31, 2020 September 25, 2020 Nov. 1, 2020
46(4) Jul. 1, 2020 Sep. 30, 2020 November 20, 2020 Jan. 1, 2021
46(5) Sep.1, 2020 Nov. 30, 2020 January 29, 2021 Mar. 1, 2021
46(6) Nov. 1, 2020 Jan. 31, 2021 Mar. 26, 2021 May 1, 2021
47(1) Jan. 4, 2021 Mar. 31, 2021 May 28, 2021 Jul. 1, 2021
47(2) Mar. 1, 2021 May 31, 2021 July 30, 2021 Sep. 1, 2021
47(3)  May 1, 2021 July 31, 2021 September 24, 202 Nov. 1, 2021

Monograph names listed below link to the combined IRA posting in which the announcement appeared.

New IRAs

All Posted IRAs

To view Accelerated Revisions by official date, please click here.