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GENII is a second generation of environmental dosimetry computer code compiled in the Hanford Environmental Dosimetry System (Generation II). GENII provides a state-of-the-art, technically peer-reviewed, documented set of programs for calculating radiation dose and risk from radio nuclides released into the environment. The GENII System includes capabilities for calculating radiation doses following postulated chronic and acute releases.

Version 2.10 is currently being evaluated for inclusion in the Central Registry. 

For more information on GENII to: 

The GENII code-specific guidance report has been issued identifying applicable regimes in accident analysis, default inputs, and special conditions for using the code.

The GENII gap analysis was performed to determine the actions needed to bring the code into compliance with SQA criteria.