Clarity Testing Services was founded in 1995 with the mission of providing high quality onsite testing services to comply with Federal DOT Drug and Alcohol Testing Regulations. As employers and labor demanded more and more safety and testing services onsite, Clarity responded by developing mobile models for high quality DOT Physicals, Respirator Medical Clearance and Certification Exams, Respirator Fit Testing, Blood Lead Testing and Lead Surveillance, Firefighter Physicals, Corporate Health Screenings, Vaccine Administration Programs, Hearing Conservation Programs and more.

learn more


Let us show you how onsite testing saves money.

latest news


OSHA’s SHARP Program

The Occupational Safety and Health Administration (OSHA) does not just create and enforce workplace... Read More

Severe Violator Enforcement Program (SVEP)

OSHA has established a new club that very few will want to be a... Read More

OSHA New Directive: Protecting Residential Construction Workers from Falls

Falls are the leading cause of death for construction workers. “We cannot tolerate workers... Read More
  • construction

    As an organization representing employers in need of substance and medical testing services, we strongly endorse Clarity Testing Services Inc. They have proven to be a valuable asset to business and workers.

    Ross J. Pepe, Construction Industry Council/BCA

  • transcanada

    The Clarity staff are professional, compassionate and understanding of the community and their unique needs. Clarity staff treat every patient as they are at a scheduled doctor’s appointment and explain their test results and give recommendations as to the best course of action going forward. The Clarity team has helped make our annual Asthma Screening and Education Day a success for the last 5 years!

    Sharon Scott, Community Relations Coordinator for TransCanada Corporation

  • construction

    Clarity’s model of bringing worksite has been a tremendous asset to our member unions and their signatory companies. They have always been available, flexible, and willing to go the extra mile to ensure the highest quality medical and customer service.
    They understand not only the construction and transportation industries, but also the nature of Labor-Management workplaces, through which they navigate beautifully.

    Edward Doyle, President, Building Trades Council

  • Clarity, its staff, technicians and medical providers have always worked well in the Labor-management workplaces in which we operate. They have shown flexibility and responsiveness in meeting our DOT and OSHA regulatory needs in the least invasive way possible, providing essentially turn-key service. We can recommend Clarity aggressively without the slightest hesitation.

    John Chrysogolos, Jr., Yonkers Contracting Company, Inc.