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Radiation Protection

I’m having trouble with the CAP-88 software; who can I ask for help?

For questions and troubleshooting help with the CAP-88 software, please send an email to Brian Littleton of the U.S. Environmental Protection Agency at

For more information about CAP-88, please see CAP-88 PC.

Return to Frequent Questions about Radiation Regulations, Guidance and Compliance.