The main purpose of this legislation, known as the Appraisal Industry Improvement Act, is to update the National Housing Act to allow state-licensed appraisers to conduct property appraisals for mortgages insured by the Federal Housing Administration (FHA). This change aims to enhance the appraisal process by ensuring that appraisers meet specific education and competency standards. Key provisions of the legislation include requirements for appraisers to be certified or licensed in the state where the property is located.