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Mine Safety and Health Administration · Document 2026-21154

Powered Air Purifying Respirators (PAPRs) in Underground Mines

Published October 16, 2026. This page separates the dates in the Federal Register notice by event type.

Docket MSHA-2025-0089 · Snapshot November 10, 2026

Dates listed in the notice

Notice dates and times
EventDate and time as listed
Comments dueDecember 8, 2026 · 11:59 PM · Eastern Time

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What changed?

The later notice revises these dates. The difference is measured between the two printed dates.

Earlier and revised dates in the same phase
Phase and earlier noticeEarlier dateRevised dateCalendar-day change
Comments due
Earlier document 2025-13746
September 2, 2025December 8, 2026 · 11:59 PM · Eastern Time+462 days

How the dates were read

Follow the notice before filing

This calendar reads dated events in the Federal Register’s DATES notes. The snapshot includes future dates found in the Register’s date query and a review of notices published in the prior 120 days. It was checked on November 10, 2026.

Federal Register data documentation · Regulations.gov · Download this snapshot