Providing Drug Testing For Manufacturing Companies Nationwide

Drug & Alcohol Program Administration For Manufacturing Plants & Warehouses

About Preferred Alliance

Many manufacturing companies are introducing employee drug-testing policies. Having a written drug testing policy in place lets employees know what is expected of them in regards to company standards.

Employers are implementing these policies for a variety of reasons, including keeping employees accountable and weeding out undesirable employees who know they won’t pass a drug test and try to cheat but also to improve workplace safety.

If employees know they are going to be tested initially, they are less likely to come to work under the influence, which lowers the rate of workplace accidents and creates a safer, more productive environment for everyone.

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Why Choose Preferred Alliance For Your Drug Testing

Preferred Alliance has more than 40 years of experience when it comes to employee drug testing, including a variety of industries.

Our years of experience means that our employees are knowledgeable and have a large selection of resources to draw on.

We also pride ourselves on having the most advanced technology available to better serve our customers.

If you choose Preferred Alliance we will make our connections, experience and technology work to your advantage.

Manufacturing Plant Employee Drug Testing In California

Who We Serve

Preferred Alliance is proud to serve a large number of clients in a variety of industries, including the manufacturing industry. We have experience helping employers implement their policies and creating a drug testing system that works for their specific needs.

We have experience creating drug testing systems for the manufacturing industry and can use that experience as a guideline to help new clients. It is always nice to have an idea of where to start, even when there aren’t specific guidelines or regulations that need to be upheld.

Why Implement Employee Drug Testing

Implementing a drug testing policy can improve the safety of the workplace and also improve productivity.

Studies have shown that implementing drug testing programs can improve employee productivity, reduce absenteeism, and decrease employee turnover. Not only will your work environment be safer, but it will also run a lot smoother.

Drug Testing Can Be Complicated. Let Us Help You.

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Who We Have Helped

Each canning season in the Central Valley of California, Preferred Alliance sends out a team of Professional Technicians to several manufacturers for onsite testing.

On the average, we process over 2,000 pre-employment tests in just a few days with our unique set-up.

Del Monte Foods has been one of our largest manufacture clients for more than 10 years.


“Merced County Schools Insurance Group has contracted with Preferred Alliance since DOT-compliance for our Member District’s commercially licensed drivers. The program has been seamless, and without exception, perfectly compliant and trouble-free.”

Terri Prichard, Merced County Schools Insurance Group

“DOT regulations are very complex with plenty of gray areas – one mistake can close us down. Preferred Alliance’s timely response and accurate information on how to manage the testing process has helped us achieve ‘letter-perfect’ compliance. We have had a great relationship for almost 10 years – there’s no reason to consider anyone else.”

Leroy Ehlers, Panella Trucking, LLC

“I have had the pleasure of working with Preferred Alliance for our seasonal drug testing needs since 1998. In our industry, we place high demands on our testing providers for flexible scheduling, quick turnaround, and competitive pricing. Preferred Alliance has consistently exceeded our expectations.”

Mike Kilpatrick, Del Monte Foods

Choose Preferred Alliance. Your Trusted Nothern CA Drug Testing Administrator.

There are more than one type of employee drug testing programs available. There are a variety of options including what types of drugs are tested for and whether or not the testing is done on-site. There is also differences on when the testing is done. Some common types of drug testing include:

Drug tests administered as a condition of employment, if the potential employee doesn’t pass, then they aren’t hired. This can improve the quality of candidates because those who know they can’t pass a drug test are less likely to apply.

Random drug tests are conducted several times a year, the exact amount can be determined by employer needs. Random drug tests help keep employees on their best behavior because they never know when the testing will occur.

If the employer has reasons to suspect that an employee is under the influence, they can ask for a drug test by a trained company representative.

Testing after an accident where reasonable suspicion of drugs and/or alcohol are present.

This for employers who may have a second chance policy and allow an employee the opportunity to get help and come back to work under a testing program (Back to Work Agreement).

Preferred Alliance will sit down and help our customers design a drug-testing procedure that fits their individual needs, including what types of testing should be administered and what drugs they want to test for.

About Preferred Alliance

We Are Here To Assist You in Maintaining a Drug-Free Workplace!

We have satisfied thousands of clients during the last 40+ years. With our meticulous, fast, and effective drug testing protocols, we promise to meet the needs of your business. Manufacturing companies who are looking to implement or improve employee drug testing policies should contact Preferred Alliance and book a consultation.

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