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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). 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

Incorporated into Print Publication

IRA Official Date

44(1) Jan. 2, 2018 Mar. 31, 2018 May. 25, 2018 USP 42–NF 37 Jul. 1, 2018
44(2) Mar. 1, 2018 May 31, 2018 Jul. 27, 2018 First Supplement to USP 42–NF 37 Sep. 1, 2018
44(3) May. 1, 2018 Jul. 31, 2018 Sep. 28, 2018 First Supplement to USP 42–NF 37 Nov. 1, 2018
44(4) Jul. 1, 2018 Sep. 30, 2018 Nov. 30, 2018 Second Supplement to USP 42–NF 37 Jan. 1, 2019
44(5) Sep. 1, 2018 Nov. 30, 2018 Jan. 25, 2019 Second Supplement to USP 42–NF 37 Mar. 1, 2019
44(6) Nov. 1, 2018 Jan. 31, 2019 Mar. 29, 2019 USP 43–NF 38 May 1, 2019

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

New IRAs

The following IRAs were published for comment in PF 43(5):   

All Posted IRAs