The United States Department of Agriculture (USDA) Forest Service (FS) is conducting market research to identify capable sources to repair SILVAH version 8 in C++ code to then work with scientific sta... The United States Department of Agriculture (USDA) Forest Service (FS) is conducting market research to identify capable sources to repair SILVAH version 8 in C++ code to then work with scientific staff to produce a new SILVAH version 9 coning some features from SILVAH 7 and 8.