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U.S. Department of Health and Human Services

Radiation-Emitting Products

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STEP Reference Number and Discussing Specific STEP Test Result Values with the Facility

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When performing the STEP test, it is critical that you identify the current Reference Step Number. You may set the current value to display on your laptop screen automatically. To do this, simply go into the Equipment Registration Screen and enter the value as the default value for the Reference Step Number. This will insure that the correct reference step number will automatically be entered into each STEP test screen from then on.

FYI for the future: When a new box of control film is issued, the Reference Step Number may change.