The board conducts environmental assessments and research. The selection process included taking academic tests, fitness assessments and several interviews. Countries differ in their risk assessments and regulations. Empirically derived personality assessments require statistical techniques. Thailand is to be responsible for conducting environmental impact assessments and land expropriations. They are widely required by agencies doing risk assessments of chemicals. Gap analysis naturally flows from benchmarking and from other assessments. Another method commonly used in extensive needs assessments is the survey. These reagents are challenging to handle and require thorough safety assessments. Independent reports raised questions about those assessments. There have been suggestions made for incorporating such factors into assessments. Penetration depths from are available for various applications and risk assessments. There are three common methods of peer assessments. The Commission advocated competitive exams, and the end of mandatory political assessments. There are few neuropsychological assessments that can definitively diagnose prosopagnosia.