National Drug Screening President Joe Reilly Publishes New Book

National Drug Screening (NDS), a nationwide leader in workplace drug testing and compliance services, announces the release of a new book, “What’s a DER?: A Practical Guide for Designated Employer Representatives (DER) Managing Drug & Alcohol Testing Programs,” authored by industry expert Joe Reilly.

Designed for employers, HR professionals, safety managers, and compliance officers, What’s a DER? delivers clear, real-world guidance for individuals responsible for managing drug and alcohol testing programs—particularly those serving in the critical role of Designated Employer Representative (DER).

The DER plays a central role in ensuring compliance with Department of Transportation (DOT) regulations and company drug-free workplace policies. However, many professionals are placed into this role with limited training and are expected to navigate complex regulatory requirements, evolving state laws, and emerging drug testing technologies.

This book addresses that gap.

“A DER or Designated Employer Representative is often launched into this position as a drug and alcohol program testing manager,” said author Joe Reilly. As state laws and federal regulations evolved, new testing technologies emerged, and the landscape of substance use continued to change, one thing remained constant: DERs needed clear, practical guidance. Not more confusion. Not more legal jargon. Not more contradictory advice. They needed a resource written by someone who has been in the trenches for decades—someone who understands the real-world scenarios that DERs face every day. That is why I wrote this book.”