Drug Analysis
Program Overview
CTS Drug Analysis proficiency tests provide laboratories around the world with a foundational tool to maintain rigorous quality standards and ensure analytical confidence. With a diverse range of controlled (U.S. Schedule 5 to Schedule 1) and non-controlled samples used in testing, we offer both qualitative tests that evaluate analysts’ accuracy and quantitative tests designed specifically to focus on participants’ abilities to determine the purity of known drug samples. Comparable on-demand options for both standard drug analysis and marihuana are also available for testing on a flexible schedule.
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Schedule
Enrollment in our Drug Analysis tests allows for testing throughout the year, with comparable on-demand options for standard drug analysis and marihuana for testing on a flexible schedule.
2026 Test Schedule
2027 Test Schedule
*While CTS will make every effort to adhere to the published program schedules, all dates provided are tentative and are subject to change.