42 CFR §37.50

1. (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). Chest radiograph interpretations and classifications must be recorded on a paper or electronic Chest Radiograph Classification Form (CDC/NIOSH 2.8).
2. (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.
   1. (1)Initial clinical interpretations and notification of findings other than pneumoconiosis under paragraph (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. (2)[Reserved]
3. (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).
4. (d)View boxes used for making interpretations must comply with the following:
   1. (1)Fluorescent lamps must be simultaneously replaced with new lamps at 6-month intervals;
   2. (2)All the fluorescent lamps in a panel of boxes must have identical manufacturer's ratings as to intensity and color;
   3. (3)The glass, internal reflective surfaces, and the lamps must be kept clean;
   4. (4)The unit must be so situated as to minimize front surface glare.