The On-Farm Odor Assistance Program (ONOAP) was developed by the National Pork Producer’s Council (NPPC) in order to address odour and environmental concerns related to pork production. The OFOAP is a voluntary, non-regulatory program, that received Environmental Protection Agency (EPA) endorsement; it provides swine producers an opportunity to be involved with an environmental assessment of their operation. The developed program would provide consistent assessments of swine operations irrespective of location, and environmental control practices that can be developed. Assesors achieve certification upon the completion of an intensive training course and completion of verification assessments supervised by certified assessors. “Experience has shown that assessments by trained professionals will reveal challenges that can reduce odor potentials and improve environmental efforts in most swine production operations.”