From State Mammography Personnel (Kay Koss-Terry on 1/22/97)

When moving a mammography system (even changing rooms within the same
building) a full physicist's report is required for compliance. Ms. Kay
Koss-Terry noted that even if the electrical connection is not "hard wired" but
is a 3 prong plug, a new physicist's report is required. The ACR is in agreement
with these requirements.