✓ If you are unable to reach the RSO, then call your regulatory
agency (name and number given at the beginning of this
section).
✓ Follow the instructions of the RSO. The RSO should report the
incident to the regulatory agency. The RSO may also be
required to notify the U.S. DOT of accidents during transport.
✓ Before shipping a damaged gauge to Troxler, obtain an RGA
(Returned Goods Authorization) number from the Troxler RSO.
A. RADIATION THEORY
Model 4640-B Appendix A–11