---
kind: "section"
citation: "42 C.F.R. § 81.25"
title: "42"
number: "81.25"
heading: "Guidelines for claims including two or more primary cancers."
url: "https://uscodex.org/cfr/42/81.25"
---

# §81.25. Guidelines for claims including two or more primary cancers.


For claims including two or more primary cancers, DOL will use NIOSH-IREP to calculate the estimated probability of causation for each cancer individually. Then DOL will perform the following calculation using the probability of causation estimates produced by NIOSH-IREP:


## Notes

### Amendments

[67 FR 22309, May 2, 2002; 67 FR 62096, Oct. 3, 2002; 84 FR 37591, Aug. 1, 2019]

### Authority

Authority: 42 U.S.C. 7384n(c); E.O. 13179, 65 FR 77487, 3 CFR, 2000 Comp., p. 321.

### Source

Source: 67 FR 22309, May 2, 2002, unless otherwise noted.

### Amendments

[67 FR 22309, May 2, 2002; 67 FR 62096, Oct. 3, 2002; 84 FR 37591, Aug. 1, 2019]