This Vappro VBCI mothballing reference guidebook provides guidelines for protecting infrastructure, equipment, and expensive capital assets during lull period for both onshore and offshore industries.Protecting the said complex and expensive infrastructure and equipment from destructive corrosion during system lay-up and mothballing is a critical concern for future reactivation. Preserved infrastructure is also more valuable in the event of sale of the asset as it prevents the drastic depreciation value of the capital assets due corrosion.This Vappro VBCI mothballing reference book main principal of concerns is mechanical, electrical, water handling systems and the combination of materials associated with these systems all of which require a concise approach to corrosion control. Corrosion of these components occurs for several reasons within an idle plant or equipment. In an idle condition, plants and associated equipment are subject to temperature fluctuations, water condensation and other conditions that cause corrosion to occur. Under certain combinations of conditions, corrosion can be very rapid. Without adequate control, corrosion can cause several problems during activation of the preserved equipment.