makers of the Zero Tolerance Drug Testing (ZTDT) products and services for individuals, organizations, and businesses.

certified SAMHSA/DOT/HHS laboratory that supplies chain of custody forms, collection cups, lab packs, and pre-paid airway bills to support workplace drug testing programs.

testing of illegal drugs in hair, urine or blood for workplace and forensic purposes.

full-service provider for drug, alcohol, and paternity testing equipment and supplies.

confidential substance abuse testing for corporate, legal, or personal applications.

reference standards and test kit for drugs of abuse testing, clinical toxicology, and therapeutic drug monitoring.

Comprehensive toxicology company specializing in workplace, on-site, biological, and therapeutic testing.

services include hair analysis for drug testing.

offering biological monitoring, drug testing, and medical surveillance.

independent laboratory providing integrated drug testing services to corporate and governmental clients.

Drug testing company using hair samples for detecting drugs of abuse.

reference laboratory offering nationwide drug testing services. Diagnostic division manufactures clinical chemistry and point of care products.