The IFO certification body provides impartial and independent monitoring services for coating companies working with liquid painting processes. Certification is carried out in annual inspections in accordance with DIN EN ISO 12944. DIN EN ISO 12944 Parts 1–9 deal with the corrosion protection of steel structures by protective paint systems. The different parts consider all the essential aspects that have a role to play in providing appropriate corrosion protection. Additional or other measures are also possible, but they would require special agreements to be made between the contracting parties.