Sec. 18.115  Elimination and investigation of harmful interference.

    (a) The operator of ISM equipment that causes harmful interference 
to radio services shall promptly take appropriate measures to correct 
the problem.
    (b) If the operator of ISM equipment is notified by the Commission's 
Engineer in Charge (EIC) that operation of such equipment is endangering 
the functioning of a radionavigation or safety service, the operator 
shall immediately cease operating the equipment. Operation may be 
resumed on a temporary basis only for the purpose of eliminating the 
harmful interference. Operation may be resumed on a regular basis only 
after the harmful interference has been eliminated and approval from the 
EIC obtained.
    (c) When notified by the EIC that a particular installation is 
causing harmful interference, the operator or manufacturer shall arrange 
for an engineer skilled in techniques of interference measurement and 
control to make an investigation to ensure that the harmful interference 
has been eliminated. The EIC may require the engineer making the 
investigation to furnish proof of his or her qualifications.