Weekly roundup · generated from the data

M21-1 and 38 CFR changes, week of Apr 25, 2022

1 38 CFR section changed this week. Each change shows the passages added and removed, compared with the previous stored version.

38 CFR

Claims based on exposure to fine particulate matter.

Apr 26, 2022

Added

  • (a) Service connection based on presumed exposure to fine particulate matter—(1) General.
  • Except as provided in paragraph (b) of this section, a disease listed in paragraphs (a)(2) and (a)(3) of this section shall be service connected even though there is no evidence of such disease during the period of military service.
  • (2) Chronic diseases associated with exposure to fine particulate matter.
  • The following chronic diseases will be service connected if manifested to any degree (including non-compensable) within 10 years from the date of separation from a qualifying period of military service as defined in paragraph (a)(5) of this section.
  • (3) Rare cancers associated with exposure to fine particulate matter.
  • The following rare cancers will be service connected if manifested to any degree (including non-compensable) at any time following separation from a qualifying period of military service as defined in paragraph (a)(5) of this section.
  • (i) Squamous cell carcinoma of the larynx.
  • (ii) Squamous cell carcinoma of the trachea.

and 15 more added passages

Removed

  • (a) Service connection based on presumed exposure to particulate matter - (1) General.
  • Except as provided in paragraph (b) of this section, a disease listed in paragraph (a)(2) of this section shall be service connected even though there is no evidence of such disease during the period of service if it becomes manifest to any degree (including non-compensable) within 10 years from the date of separation from military service that includes a qualifying period of service as defined i…
  • (2) Chronic diseases associated with exposure to particulate matter.
  • The chronic diseases referred to in paragraph (a)(1) of this section are the following:
  • (3) Presumption of exposure.
  • A veteran who has a qualifying period of service as defined in paragraph (a)(4) of this section shall be presumed to have been exposed to fine, particulate matter during such service, unless there is affirmative evidence to establish that the veteran was not exposed to fine, particulate matter during that service.
  • (4) Qualifying period of service.
  • A disease listed in paragraph (a)(1) of this section shall not be presumed service connected if there is affirmative evidence that:

and 14 more removed passages

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How this roundup is made

  • This page is generated automatically from stored versions of each section. No one writes or edits it, and it adds no interpretation: it shows the passages added and removed.
  • M21-1 is copied weekly since March 20, 2026, and a change counts only when the VA's own “last updated” date moved; the date shown is that date. 38 CFR versions start December 14, 2016, dated by amendment.
  • Always confirm the current text at the source link before relying on it.