### Question
What is the definition of chronic silicosis?


### Answer
The definition of **chronic silicosis** is as follows in *42 U.S.C. § 7384r*:

> a nonmalignant lung disease if—


(1) the initial occupational exposure to silica dust preceded the onset of silicosis by at least 10 years

#### Citation:
  - *42 U.S.C. § 7384r*
  - Heading: **CHAPTER 84-DEPARTMENT OF ENERGY > SUBCHAPTER XVI-ENERGY EMPLOYEES OCCUPATIONAL ILLNESS COMPENSATION PROGRAM > Part B-Program Administration**

