The Vocational Rehabilitation Assessment Regulation (1998) mandated the use of appropriate test accommodation strategies when administering vocational assessment for people with disabilities. Decisions about test accommodation need to take several factors into consideration, such as types of disabilities and levels of functions. Strategies of test accommodation include alteration of test contexts, procedures or formats. However, any deviations from the standard test administration might hinder the reliability, validity and fairness of the tests. This article will review the issues of test accommodation and psychometrics in the administration of standardized tests. Implications for clinical practice and further research in vocational evaluation are suggested.