§ 37.53 Method of obtaining definitive chest radiograph classifications.

(a) All chest radiographs which are first classified by an A or B Reader will be submitted by NIOSH to a B Reader qualified pursuant to § 37.52.

(1) If there is agreement between the two classifications, as described in paragraph (b) of this section, the result will be considered final and reported to MSHA for transmittal to the miner.

(2) When agreement is lacking, NIOSH must obtain a third classification from the panel of B Readers.