The process of revision and updating of the NRCS Nutrient Management Standard (590) began in September of 2000. The current standard was developed in the early 1990’s and was completed in 1993. Throughout the mid to late 1990’s, multiple local, state and federal agencies have entered the nutrient management arena, and with their entrance have presented unique agendas. Advances in the process of nutrient management as well as within the agricultural community have occurred and continue to proceed. The Wisconsin Department of Natural Resources and Department of Ag, Trade and Consumer Protection are also in the process of developing non-point pollution controls that will impact most if not all croplands of the state. The convergence of these factors provided the motivation to review and update the standard to reflect the changes of the past and to meet the intent of the nutrient management policy in the state.