Employers seeking to justify a discriminatory biochemical test should follow a two-step validation procedure. First, employers should offer specific evidence to verify the accuracy of the test such as initial screening followed by confirmation tests. Second, after establishing the accuracy of the test, employers should use the Uniform Guidelines on Employee Selection Procedures as promulgated by the Equal Employment Opportunity Commission to validate the biochemical test. The article argues that courts must require employers to justify biochemical tests and demonstrate that they are accurate and job-related. 130 footnotes.