Publication & Comment Schedule

USP–NF Publication Schedule

PF IssueCommentary PeriodUSP-NF IssuePublication DateOfficial Date (unless otherwise specified)
49(5)September 1- November 30, 2023USP-NF 2025, Issue 1November 1, 2024May 1, 2025
49(6)November 1, 2023-January 1, 2024USP-NF 2025, Issue 1November 1, 2024May 1, 2025
50(1)January 1- March 31, 2024USP-NF 2025, Issue 2February 1, 2025August 1, 2025
50(2)March 1- May 31, 2024USP-NF 2025, Issue 2February 1, 2025August 1, 2025
50(3)May 1-July 31, 2024USP-NF 2025, Issue 3June 1, 2025December 1, 2025
50(4)July 1- September 30, 2024USP-NF 2025, Issue 3June 1, 2025December 1, 2025
50(5)September 1- November 30, 2024USP-NF 2026, Issue 1July 25, 2025*February 1, 2026*
50(6)November 1, 2024- January 31, 2025USP-NF 2026, Issue 1July 25, 2025*February 1, 2026*
51(1)January 2-March 31, 2025USP-NF 2026, Issue 2September 26, 2025*April 1, 2026*
51(2)March 3-May 31, 2025USP-NF 2026, Issue 3November 21, 2025*June 1, 2026*
51(3)May 1- July 25, 2025USP-NF 2026, Issue 4January 30, 2026*August 1, 2026*
51(4)July 1-September 30, 2025USP-NF 2026, Issue 5March 27, 2026*October 1, 2026*
51(5)September 2-November 30, 2025USP-NF 2026, Issue 6May 29, 2026*December 1, 2026*
51(6)November 3, 2025-January 31, 2026USP-NF 2027, Issue 1July 31, 2026*February 1, 2027*

(The USP–NF is also published as a Spanish Edition. View Spanish Edition publication schedule. Official dates are the same.)

*Date reflects the new publication model schedule. Please see the related Compendial Notice and informational page.

Interim Revision Announcement (IRA) Pharmacopeial Forum Posting, Comment Deadline, Posting and Official Dates, and Target Publication Schedule

PFPF Posting DateComment Due DateTarget IRA Posting DateIRA Official Date
50(5)September 3, 2024November 30, 2024January 31, 2025March 1, 2025
50(6)November 1, 2024January 31, 2025March 28, 2025May 1, 2025
51(1)January 2, 2025March 31, 2025May 30, 2025July 1, 2025
51(2)March 3, 2025May 31, 2025July 25, 2025September 1, 2025
51(3)May 1, 2025July 31, 2025September 26, 2025November 1, 2025
51(4)July 1, 2025September 30, 2025November 21, 2025January 1, 2026
51(5)September 2, 2025November 30, 2025January 30, 2026March 1, 2026
51(6)November 3, 2025January 31, 2026March 27, 2026May 1, 2026

Revision Bulletin Publication Schedule

Online Posting DateOfficial Dates for Revision Bulletins (unless otherwise indicated)
February 28, 2025March 1, 2025
March 28, 2025April 1, 2025
April 25, 2025May 1, 2025
May 30, 2025June 1, 2025
June 27, 2025July 1, 2025
July 25, 2025August 1, 2025
August 29, 2025September 1, 2025
September 26, 2025October 1, 2025
October 31, 2025November 1, 2025
November 21, 2025December 1, 2025
December 19, 2025January 1, 2026
January 30, 2026February 1, 2026
February 27, 2026March 1, 2026
March 27, 2026April 1, 2026