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Odor is a contaminant receiving increased attention in the agricultural industry. As residential sprawl encroaches on agricultural land and farm size increases, odor complaints are becoming more common. This paper provides an overview of odor considerations in agriculture including sampling methods, methods for mitigating odor and odor regulations. Odor continues to be a topic of interest to the United States Environmental Protection Agency (EPA) although they not federally regulated at this time. As the number of odor complaints increases, environmental exemptions for agriculture are being rescinded by local governments. The management of odor from the agricultural industry is essential. Odor regulations are varied within countries and around the world, and are much less consistent than the regulations surrounding toxic and other risk based criteria. Odor is almost always comprised of more than one compound and the synergistic effects between compounds make predicting odor strength difficult. Proper sampling and analytical techniques are required to present a representative odor profile for various operations. In the summer of 2011, the EPA anticipates publishing emission estimating methodologies for animal feeding operations, which can be used in place of expensive sampling programs to develop emission profiles. An emission profile is required to understand where improvements can best be made to eliminate or reduce odor emissions to minimize potential off-site impacts.