NMP = nutrient management plan; CNMP = comprehensive nutrient management plan; MMP = manure management plan.
These acronyms are regulatory distinctions of nutrient management plans depending on the size of dairy and the state where it’s located. Generally, a CNMP applies to CAFOs – though some smaller farms need one depending on how they handle manure. NMPs will be the most common; generally applicable to most size dairies above a certain threshold. MMPs vary – some states have them for smaller dairies, though not necessarily required by regulation. For example, this is how it’s broken down in PA: https://extension.psu.edu/programs/nutrient-management/manure/understanding/what-type-of-plan-do-you-need-for-your-farm