---
kind: "section"
citation: "42 C.F.R. § 37.50"
title: "42"
number: "37.50"
heading: "Interpreting and classifying chest radiographs—film radiography systems."
url: "https://uscodex.org/cfr/42/37.50"
---

# §37.50. Interpreting and classifying chest radiographs—film radiography systems.

- (a) Chest radiographs must be interpreted and classified in accordance with the Guidelines for the Use of the ILO International Classification of Radiographs of Pneumoconioses (incorporated by reference, see [§ 37.10](/cfr/42/37.10.md)). Chest radiograph interpretations and classifications must be recorded on a paper or electronic Chest Radiograph Classification Form (CDC/NIOSH 2.8).
- (b) Radiographs must be interpreted and classified only by a physician who reads chest radiographs in the normal course of practice and who has demonstrated proficiency in classifying the pneumoconioses in accordance with [§ 37.52](/cfr/42/37.52.md).
  - (1) Initial clinical interpretations and notification of findings other than pneumoconiosis under [paragraph (a)](#a) of this section must be provided by a qualified physician who provides these services for the examining facility. This physician must have all required licensure and privileges, and must interpret chest radiographs in the normal course of practice.
  - (2) [Reserved]
- (c) All interpreters, whenever interpreting chest radiographs made under the Act, must have immediately available for reference a complete set of the standard radiographs for use with the Guidelines for the Use of the ILO International Classification of Radiographs of Pneumoconioses (incorporated by reference, see [§ 37.10](/cfr/42/37.10.md)).
- (d) View boxes used for making interpretations must comply with the following:
  - (1) Fluorescent lamps must be simultaneously replaced with new lamps at 6-month intervals;
  - (2) All the fluorescent lamps in a panel of boxes must have identical manufacturer's ratings as to intensity and color;
  - (3) The glass, internal reflective surfaces, and the lamps must be kept clean;
  - (4) The unit must be so situated as to minimize front surface glare.

## Notes

### Amendments

[81 FR 73284, Oct. 24, 2016]

### Authority

Authority: Sec. 203, 83 Stat. 763; 30 U.S.C. 843, unless otherwise noted.

### Source

Source: 43 FR 33715, Aug. 1, 1978, unless otherwise noted.

### Amendments

[81 FR 73284, Oct. 24, 2016]