Unless other recommendations are made in writing by a qualified expert, each registrant using computed radiography (CR) or direct digital radiography (DDR) modes shall comply with the manufacturer’s or vendor’s recommendations with regard to:

1. (a) Exposure indicator values;
2. (b) CR cassette erasure frequency; and
3. (c) Image evaluation for artifacts, spatial resolution, contrast/noise, and exposure indicator constancy unless otherwise advised in writing by a qualified expert.

Source. #10893, eff 7-21-15