The use of carbon steel and corrosion inhibition has often been retained as the best cost effective solution for corrosion control in particular for long pipelines carrying sweet or mildly sour wet hydrocarbons including but not limited to crude oil export lines wet gas pipelines and flow lines. The integrity of such structures heavily relies on the effectiveness of the corrosion inhibition program in place. This paper focuses on film forming inhibitors and highlights the requirements needed to ensure a proper selection and application of the corrosion inhibitor for a given environment. It describes all requirements relating to the chemistry and track record of the chemical its performance testing steps its application and delivery to the pipe wall the corresponding corrosion monitoring and inspection the determination of the optimum dosage and injection locations and finally the logistics of transportation storage environmental compliance and cost.