FAQs What drug panels should state agencies select for drug testing? Who should drug test? What constitutes a Refusal? What does Adulterated mean? What does Substituted mean? Should I send someone with a Negative Dilute result for a retest? Should I send anyone who has a cancelled or rejected test result for a retest? Substance Abuse Position Analysis What do the results mean? Why would a test be rejected or cancelled? See all FAQ Statewide Substance Abuse Testing Program Introduction Laws, Regulations, and Rules Resources and Training FirstRequest FAQs