Medicaid Services (CMS) under the Clinical Laboratory Improvement Act (CLIA). The objective of the CLIA program is to ensure quality laboratory testing by establishing standards for accuracy, reliability, and timeliness of patient test results. A laboratory is defined as any facility that tests specimens derived from humans for the assessment of health or the diagnosis, prevention, and treatment of disease. CLIA regulations, published in 1992, are based on the complexity of the test method; thus, the more complicated the test, the more stringent the requirements. Lab tests used in the diagnosis of infertility, such as semen and blood analysis, are covered by CLIA. The procedures performed in embryology.