LLNL


Lawrence Livermore National Laboratory, which administers licensing for the copyrighted software NEC-4.2 and NEC-5.

The following links are valid as of April 1, 2024 but might change in the future.

To obtain an NEC-5 license, go to https://softwarelicensing.llnl.gov/product/nec-v50.

For instructions on updating an originally issued (unmodified) NEC-5 program to a modified (debugged) one, go to https://softwarelicensing.llnl.gov/product/nec-v50. See NEC-5 for more information.

To obtain an NEC-4.2 license or upgrade NEC-4.1 to NEC-4.2 , go to https://softwarelicensing.llnl.gov/product/nec-v42