Condition assessment is done for individual equipment or pipeline, while corrosion audit is done for the whole facility. Steps and activity generally include - site visit to visually check the corrosion status of the affected items and nearby sources of inducing corrosion; record collection for design (material, design life, corrosion allowance, corrosion control measure), inspection, monitoring, maintenance, failure investigation, etc.; interview of operation and maintenance personnel; review and analysis of data and information; report development with recommendations bearing the remaining life (of specific item) and future preventive/ correction actions (modified inspection schedule, maintenance or replacement, a material or design upgrade, a protective measure, need of further investigation, etc.).