When an off-site exam is required, a properly disinfected scope is placed in a new clamshell and then slid into a carrying tube (Endocarrier) for safe transport to an exam. After the exam, the dirty endoscope is then placed back into the clamshell and into a carrying tube and a "dirty" tag is tied to the tube strap indicating disinfection is required. The endoscope is returned to the office for proper cleaning and disinfection. Then, dispose of the single use clamshell.