US EPA Clean Air Markets Division (CAMD) undertook a project to re-engineer the process and data systems associated with emissions, monitoring plan, and certification data. As part of the project, CAMD reviewed how monitoring plan information, certification/recertification applications, on-going quality assurance data, and emissions data are maintained, quality assured and submitted. CAMD also reviewed the tools available for checking and submitting data on a quarterly and ozone season basis.