One of the most common and costly compliance mistakes pipeline operators make is forgetting about their contractors. The PHMSA rules are clear: anyone performing a safety-sensitive function on your pipeline must be included in a testing program, regardless of who signs their paycheck. This blind spot is a major red flag for auditors and can lead to significant penalties. This common error highlights just how critical it is to get the details right when it comes to drug testing for PHMSA employers. In this article, we’ll explore this and other frequent pitfalls, providing practical steps to help you avoid them and strengthen your overall compliance strategy from the ground up.
Key Takeaways
- Define Your Safety-Sensitive Team Correctly: Your PHMSA testing program must cover everyone performing safety-sensitive functions, not just your direct employees. This includes contractors and temporary staff, and you are responsible for verifying their compliance to avoid major audit failures.
- Master the Full Spectrum of Required Testing: A compliant program is not a single event; it is a continuous process. You must be prepared to conduct multiple types of tests, including ongoing random selections to deter use and rapid post-accident testing within strict time limits.
- Prioritize Meticulous Record-Keeping and Policy: Your best defense in an audit is flawless documentation. Maintain an up-to-date written policy, train your supervisors, and keep detailed records of every test and compliance check, as auditors will verify everything from random pool management to contractor agreements.
What is PHMSA Drug Testing?
If you operate in the pipeline industry, you’re likely familiar with the Pipeline and Hazardous Materials Safety Administration, or PHMSA. As an agency within the U.S. Department of Transportation (DOT), PHMSA’s core mission is to ensure that hazardous materials and energy resources are transported safely through our nation’s pipelines. A critical piece of this safety puzzle is preventing substance-related accidents. This is where PHMSA’s drug and alcohol testing regulations come into play. These aren't just best practices; they are mandatory rules designed to protect your workers, the public, and the environment from the catastrophic consequences of an incident caused by an impaired employee.
Think of PHMSA drug testing as a non-negotiable part of your safety and compliance strategy. The regulations establish a framework for who needs to be tested, what situations require a test, and how the entire process must be managed. For pipeline operators, staying on top of these requirements is essential for maintaining operational integrity, avoiding hefty fines, and demonstrating a commitment to safety. A compliant program shows that you are proactive about risk management, which is fundamental to running a successful and sustainable business in this high-stakes industry.
PHMSA and the DOT: What's the Connection?
It helps to think of the DOT as the main authority on workplace drug and alcohol testing for all transportation-related industries. PHMSA is one of the specific agencies operating under the DOT's umbrella, alongside others like the Federal Motor Carrier Safety Administration (FMCSA) and the Federal Aviation Administration (FAA). While the DOT sets the universal procedures for testing, each agency tailors the rules for its specific sector.
For pipeline operators, PHMSA’s specific regulations are found in 49 CFR Part 199. This rule requires companies subject to pipeline safety regulations to test their "covered" employees for prohibited drugs and alcohol. In short, the DOT provides the master playbook, and PHMSA provides the specific chapter for the pipeline industry.
Does PHMSA Apply to Your Pipeline Operations?
Determining if PHMSA’s rules apply to you is straightforward. The regulations cover companies that operate gas pipelines, hazardous liquid pipelines, and liquefied natural gas (LNG) facilities. If your business involves any of these, you are almost certainly a PHMSA-regulated employer. However, the rules don’t apply to every single employee on your payroll. They are specifically aimed at individuals performing "safety-sensitive" functions.
These are the roles where impairment could lead directly to a serious incident. Safety-sensitive functions include tasks related to operations, maintenance, and emergency response. Anyone who operates, maintains, or is available to respond to an emergency on a pipeline facility is considered a covered employee and must be included in your drug and alcohol testing program.
Understanding 49 CFR Part 40
While PHMSA’s Part 199 tells you who to test and when, it doesn’t explain how to conduct the tests. That’s where 49 CFR Part 40 comes in. This is the DOT’s comprehensive rulebook that dictates the exact procedures for every single DOT-mandated drug and alcohol test, regardless of the specific agency. It’s the foundational document for all transportation workplace testing programs.
Part 40 outlines every step of the process, from specimen collection and lab analysis to the roles and responsibilities of Medical Review Officers (MROs) and Substance Abuse Professionals (SAPs). All PHMSA operators must conduct their testing according to these meticulous procedures. Adhering to Part 40 ensures your program is consistent, defensible, and fair, protecting both the company and the employee throughout the testing process.
Identifying Your PHMSA Safety-Sensitive Employees
Correctly identifying your safety-sensitive employees is the first and most important step in building a compliant PHMSA drug and alcohol testing program. This isn't just about job titles; it's about job functions. The regulations define a safety-sensitive employee as anyone who performs an operation, maintenance, or emergency-response function on a pipeline or at an LNG facility.
Getting this classification right from the start prevents major headaches down the road, from audit failures to steep fines. It ensures that every person whose performance could impact public safety is included in your testing program. Let’s walk through who falls into this category so you can be confident your roster is accurate and complete.
Operations and Maintenance Roles
Think about the people who are hands-on with your pipeline infrastructure every day. This category includes anyone who performs safety-sensitive jobs on gas, hazardous liquid, or LNG pipelines. Their responsibilities directly involve the operational integrity and safety of the system.
This isn't limited to just one or two roles. It covers a wide range of functions, including welders, mechanics, technicians, and control room operators. If an employee's duties involve operating, repairing, or maintaining the pipeline or its components, they are considered safety-sensitive. You need to look past their official title and focus on what they actually do day-to-day to ensure they are correctly included in your testing pool.
Emergency Response Personnel
Your emergency response team is automatically classified as safety-sensitive, and for good reason. These are the individuals designated to take action during a leak, rupture, or any other crisis. Their ability to perform their duties clearly and effectively is critical to protecting your workers, the public, and the environment.
This includes not only your dedicated emergency response team but also any other employee who has a defined role in your emergency plan. For example, if a maintenance technician is also trained and expected to operate a valve or perform a specific task during an emergency, they must be part of your random testing program. Their readiness can make all the difference when seconds count.
Contractors and Third-Party Workers
One of the most common and costly compliance mistakes is forgetting to include contractors in your testing program. The PHMSA rules are clear: anyone who performs a safety-sensitive function on your pipeline must be subject to testing, regardless of who signs their paycheck. This includes full-time, part-time, temporary, and contract workers.
If you hire a third-party company for welding, maintenance, or emergency support, you are responsible for ensuring their employees comply with PHMSA drug testing requirements. You can either enroll them in your company's random testing pool or verify that their employer runs a compliant program of its own. Simply trusting that they have it covered isn't enough; you need documentation to prove it.
How to Avoid Common Misclassification Errors
Avoiding misclassification comes down to diligence and clear documentation. Start by creating a comprehensive list of all job functions, not just titles, that touch your pipeline operations. Review this list with your supervisors and managers to ensure everyone who performs a safety-sensitive task is identified.
Proper supervisor training is also essential. Your leaders need to understand the definitions and be able to identify covered employees. Forgetting to test contractors can lead to significant penalties, so make this a point of emphasis. Regularly audit your employee roster and contractor lists against your defined safety-sensitive functions. This proactive approach ensures your program remains accurate and defensible if an auditor ever comes knocking.
What Drug and Alcohol Tests Does PHMSA Require?
A compliant PHMSA drug and alcohol testing program isn’t a one-time event. It’s a continuous process with specific tests required at different points in an employee’s career. Understanding when to test is just as important as knowing how to test. From the moment you consider a new hire to the aftermath of an incident, PHMSA has clear rules for ensuring your team is fit for duty. These requirements are designed to create multiple checkpoints that protect your workers, your operations, and the public. Let’s walk through each type of test you’ll need to have in your program.
Pre-Employment Screening
Think of pre-employment drug testing as the gatekeeper for your safety-sensitive roles. Before any new hire or a current employee transferring into a covered position can begin work, they must pass a drug test. This isn't just a suggestion; it's a mandatory first step. A negative test result is required before the employee can perform any safety-sensitive function. This initial screening ensures that you are bringing people onto your team who meet the fundamental safety standards from day one. It’s a straightforward way to prevent substance use issues from entering your workplace and is a critical part of establishing a culture of safety and compliance from the start.
Random Testing and Annual Rates
Random testing is the backbone of an effective deterrence program. Because these tests are unannounced and spread throughout the year, they ensure that employees remain compliant at all times, not just during predictable screening windows. PHMSA sets minimum annual testing rates for the entire pipeline industry. Currently, operators must randomly test 50% of their covered employees for drugs and 10% for alcohol over the course of the year. These DOT random testing rates can change, so it's vital to stay informed. A scientifically valid, random selection process is required, which is why many operators partner with a Third-Party Administrator (TPA) to manage the pool and ensure true impartiality.
When to Conduct Post-Accident Testing
After a pipeline accident, you have a very tight window to conduct testing. PHMSA requires post-accident testing for any event that results in a death, an injury requiring immediate medical treatment away from the scene, or significant property damage. The timelines are strict: an alcohol test must be performed within eight hours of the incident, and a drug test must be completed within 32 hours. If you can't meet these deadlines, you must document exactly why. This rapid response is crucial for determining if substance use was a contributing factor. Having a partner ready for 24/7 emergency callouts is essential to meeting these demanding requirements.
Reasonable Suspicion Testing
This type of testing is initiated when a supervisor has a strong reason to believe an employee is under the influence of drugs or alcohol while on duty. This isn't a guess or a hunch. The decision must be based on specific, real-time observations of the employee's appearance, behavior, speech, or body odors. To make this call, supervisors must receive formal training on reasonable suspicion. They need to know exactly what signs to look for and how to document their observations properly. This documentation is critical because it provides a clear, defensible reason for requiring the test and protects both the employee and the company.
The Return-to-Duty and Follow-Up Process
If an employee fails or refuses a drug or alcohol test, they cannot simply return to work. They must be immediately removed from all safety-sensitive duties and begin the formal return-to-duty process. This structured path starts with an evaluation by a Substance Abuse Professional (SAP). After the employee completes the SAP’s prescribed education or treatment plan, they must pass a directly observed return-to-duty test. But it doesn’t end there. Once back on the job, the employee is subject to a minimum of six unannounced, directly observed follow-up tests over the next 12 months. This intensive monitoring ensures the employee remains compliant long-term.
Understanding the Role of the SAP
The Substance Abuse Professional (SAP) is a central figure in the return-to-duty process. An SAP is a licensed professional, such as a physician or a certified counselor, who evaluates employees who have violated DOT drug and alcohol regulations. Their primary role is to protect public safety. The SAP is not an advocate for the employer or the employee. They conduct a face-to-face clinical assessment, recommend a course of treatment or education, and manage the follow-up testing schedule. An employee cannot return to a safety-sensitive position until the SAP provides a written report clearing them to take the return-to-duty test. Their expert guidance is non-negotiable and essential for compliance.
The Real Costs of PHMSA Non-Compliance
Thinking of PHMSA compliance as just another administrative task is a critical mistake. The consequences of a failed audit or a compliance gap go far beyond simple paperwork corrections. They can impact your finances, your operations, and your company's reputation in the industry. Understanding these risks is the first step to protecting your business from serious, and often preventable, setbacks. Let’s walk through what’s really at stake when your drug and alcohol testing program falls short.
Fines and Civil Penalties
Failing to follow PHMSA's drug and alcohol testing rules can hit your company's bottom line, hard. We aren't talking about minor infractions. The Department of Transportation can issue significant civil penalties for violations, and these fines can add up quickly, especially if an audit uncovers systemic issues across your workforce. Think of it this way: the cost of maintaining a compliant, well-managed program is just a fraction of what you might pay in fines. It’s a proactive investment in your company's financial health. Staying on top of your program ensures you’re not caught off guard by a penalty that could have been easily avoided.
Operational Shutdowns and Contract Loss
Beyond fines, non-compliance can bring your entire operation to a grinding halt. If an auditor finds serious gaps in your program, they have the authority to order a shutdown until you fix the issues. For pipeline operators and construction firms, this means idle equipment, stalled projects, and massive financial losses for every hour of downtime. Even worse, a compliance failure can damage your reputation and lead to losing valuable contracts. Many large operators and government agencies will not work with companies that have a poor safety or compliance record. A single incident can get you removed from bid lists, jeopardizing the future of your business.
How Auditors Discover Violations
Auditors are trained to spot inconsistencies, and they often start with your documentation. One of the first things they’ll ask to see is your written drug and alcohol misuse plan. This document is the foundation of your entire program, and auditors will check if it’s up-to-date and comprehensive. Another major red flag is the improper management of contractors. If you use third-party workers in safety-sensitive roles, you must have a written contract detailing their inclusion in your testing program. Simply hoping your contractors are handling their own compliance isn't enough; auditors will want to see the proof in your records.
How to Build an Audit-Ready PHMSA Program
A PHMSA audit can feel like a final exam you didn’t know was coming. But with the right preparation, it’s an opportunity to prove your commitment to safety and compliance. Building an audit-ready program isn’t about scrambling before an inspection; it’s about creating a durable, day-to-day system that protects your workers, your contracts, and your reputation. A strong program is your best defense against violations, fines, and operational disruptions.
Think of your compliance program as the framework that supports your entire safety culture. Each element, from your written policy to your record-keeping, works together to create a system that is both effective and defensible. When every step is handled correctly, you’re not just checking boxes for an auditor. You’re actively reducing risk on your jobsites and ensuring your team can perform their duties safely. The following steps outline the essential components of a PHMSA program that can stand up to scrutiny at any time.
Create a Written Drug and Alcohol Policy
Your written policy is the foundation of your entire compliance program. This document should be a clear, straightforward guide that leaves no room for confusion. It needs to explain exactly who is covered under your PHMSA testing program, what specific situations trigger a test (like pre-employment or random selection), and the step-by-step consequences for a policy violation.
This isn’t just a formality for the auditors; it’s a critical communication tool for your employees. Every person in a safety-sensitive role should receive and acknowledge this policy. A well-written plan ensures everyone understands the rules and that procedures are applied consistently, which is essential for building a fair and defensible drug and alcohol testing program.
Include Contractors in Your Testing Pool
One of the most common and costly mistakes pipeline operators make is overlooking their contractors. PHMSA regulations apply to anyone who performs a safety-sensitive function on your pipeline, whether they are a full-time employee or a third-party contractor. You are ultimately responsible for ensuring every person working on your behalf is compliant.
This means you must either confirm that your contractors have their own compliant PHMSA drug and alcohol testing program or enroll their covered employees into yours. During an audit, inspectors will check your records to verify that your testing pool includes these workers. Failing to do so is a significant red flag and can lead to serious penalties. Integrating contractors correctly is a non-negotiable part of maintaining a compliant program.
Partner with a Reputable TPA or Consortium
Managing a compliant random testing program can be complex, especially for smaller operators. That’s why many companies partner with a Third-Party Administrator (TPA) or join a testing consortium. A consortium pools employees from multiple companies into a larger group for random selection. This process ensures the selection is truly random and scientifically valid, which is a core requirement of the DOT.
Working with a TPA like Patriot Safety removes the administrative burden and potential for bias from your team. We manage the entire process, from generating the random list to coordinating tests and maintaining records. This partnership provides peace of mind, knowing your consortium and TPA services are being handled by experts, keeping your program defensible and your focus on your core business.
Follow Proper Collection and MRO Procedures
A drug test is only as reliable as the process behind it. To be defensible in an audit or legal challenge, every collection and analysis must follow strict DOT protocols. This starts with using a qualified and trained collector who understands the precise steps of a DOT-regulated collection. From there, all specimens must be sent to a SAMHSA-certified laboratory for analysis.
After the lab, a certified Medical Review Officer (MRO) must review all results. The MRO is a licensed physician who acts as an impartial gatekeeper, responsible for interpreting lab findings and speaking with the employee to determine if a legitimate medical reason exists for a positive result. This critical step protects both the employee and the employer, ensuring fairness and accuracy.
Train Supervisors on Reasonable Suspicion
Your supervisors are your first line of defense in identifying and addressing potential impairment on the job. PHMSA regulations require that any supervisor who oversees safety-sensitive employees receives specific training on the signs and symptoms of drug and alcohol use. This training empowers them to make objective, fact-based observations and confidently initiate reasonable suspicion testing when warranted.
The goal isn’t to turn supervisors into diagnosticians but to equip them with the skills to recognize behaviors and physical signs that could indicate a safety risk. Proper documentation of these observations is crucial. This training not only fulfills a regulatory requirement but also gives your supervisors the confidence to act decisively to protect their team and the public.
Maintain Flawless Records for Audits
If it isn’t documented, it didn’t happen. This is the mantra of every DOT auditor. Meticulous record-keeping is non-negotiable for a PHMSA-regulated company. You must maintain organized, accessible, and complete records for every aspect of your drug and alcohol program. This includes your written policy, employee acknowledgments, random testing selections, and results for every test conducted.
You’ll also need records of supervisor training, MRO reports, and documentation proving your contractors are compliant. During an audit, an inspector will ask to see these files. Having them ready demonstrates that your program is well-managed and that you take your safety obligations seriously. Using a TPA can help centralize and streamline this process, ensuring your records are always audit-ready.
Avoid These Common PHMSA Compliance Mistakes
Staying compliant with PHMSA regulations is non-negotiable, but it’s also complex. Even with the best intentions, companies can make simple errors that lead to significant problems during an audit. These aren't just about paperwork; they're about fundamental gaps in your safety program that can expose your business to fines, operational delays, and increased risk on the job site. Many of these issues arise not from a deliberate choice to ignore the rules, but from small oversights that snowball over time.
The good news is that most of these mistakes are entirely preventable. By understanding where companies commonly stumble, you can take proactive steps to strengthen your program. It all comes down to having solid processes for managing your testing pool, keeping documents in order, and ensuring your policies reflect the most current regulations. Let’s walk through some of the most frequent compliance missteps and, more importantly, how you can avoid them to keep your operations safe, compliant, and audit-ready.
Missing Random Testing Quotas
PHMSA requires operators to randomly test a specific percentage of their safety-sensitive employees for both drugs and alcohol each year. These rates can change, so it's your responsibility to stay current. Failing to meet the annual quota is one of the easiest red flags for an auditor to spot. This often happens when companies have poor tracking systems or when their employee pool fluctuates without adjusting the testing numbers. Adhering to these DOT drug testing rules under PHMSA is critical, as failure to do so can result in significant fines and legal trouble. A reliable Third-Party Administrator (TPA) can manage your random testing pool to ensure you meet the required percentages every time.
Forgetting to Include Contractors
This is a huge one. If you hire contractors to perform safety-sensitive duties on your behalf, they must be included in a compliant drug and alcohol testing program. Many operators mistakenly believe their responsibility ends with their direct employees. However, PHMSA sees it differently. You are responsible for ensuring every person performing a covered function, employee or contractor, is subject to testing. A common mistake is not including contractors in drug testing programs, which can lead to major compliance gaps. Always verify your contractors' compliance or enroll them in your own program.
Relying on an Outdated Policy
Your drug and alcohol policy is not a "set it and forget it" document. Regulations change, your company evolves, and your policy must reflect these updates. An outdated policy might reference old rules, list incorrect contacts, or fail to address new scenarios your workforce faces. Many compliance issues stem from poor program management rather than a complete failure to test. Regularly reviewing and updating your written policy is a cornerstone of good-faith compliance. We recommend an annual review to ensure your policy is accurate, relevant, and fully aligned with current PHMSA and DOT rules.
Keeping Inaccurate or Incomplete Records
If you can't prove it, you didn't do it. During an audit, your records are your first line of defense. Auditors will scrutinize everything from test results and collection forms to supervisor training certificates and policy acknowledgments. Messy, incomplete, or missing records are a direct path to violations. Employers must maintain meticulous records of all testing activities to ensure compliance and avoid penalties. Using a digital system or partnering with a TPA can help you keep flawless, audit-ready records that are organized and easily accessible when you need them most.
Mismanaging a Mobile Workforce
For industries like pipeline construction and maintenance, your workforce is constantly on the move. This creates unique logistical challenges for drug and alcohol testing. You can't wait for employees to return to a home base for a random or post-accident test. PHMSA’s drug and alcohol testing program overview makes it clear that all covered employees, including mobile ones, must be included. You need a solid plan and the resources to execute it, which often means having access to a nationwide network of collection sites and 24/7 mobile testing services. This ensures you can respond quickly and compliantly, no matter where your employees are working.
Let Patriot Safety Keep Your Program Compliant
Managing a PHMSA drug and alcohol testing program can feel like a full-time job. Between tracking random testing rates, managing paperwork, and responding to incidents, it’s easy for compliance to slip through the cracks. That’s where a dedicated partner can make all the difference. Instead of juggling multiple vendors or trying to handle everything in-house, you can rely on a single team of experts to keep your program audit-ready and running smoothly.
At Patriot Safety, we act as an extension of your team. We specialize in the complexities of DOT regulations, including the specific rules for pipeline operators. We don't just provide tests; we provide confidence that your program is defensible, your records are flawless, and your workforce is safe. From developing your written policy to managing your random testing pool and providing 24/7 on-site collections, we handle the details so you can focus on your core operations. Our goal is to give you peace of mind, knowing your compliance is in expert hands.
Comprehensive Testing for Pipeline Operators
As a pipeline operator, you are required to maintain a compliant drug and alcohol testing program for all safety-sensitive employees. This isn't just a suggestion; it's a federal mandate under 49 CFR Part 199. We manage every aspect of your testing needs, including pre-employment, random, post-accident, reasonable suspicion, and return-to-duty testing. We ensure every collection follows strict DOT protocols, giving you legally defensible results you can trust. Our team understands the nuances of PHMSA regulations, so you can be sure your program meets every requirement.
Seamless Consortium and TPA Management
Meeting the annual random testing rates can be a challenge, especially for smaller companies. Joining a consortium, or a large, multi-company testing pool, is an effective solution. As your Third-Party Administrator (TPA), we can manage your inclusion in a consortium to ensure your random testing obligations are met fairly and efficiently. We handle all the administrative work, from managing the employee pool and making selections to scheduling tests and maintaining documentation. This service removes a significant burden from your team and helps you stay compliant with PHMSA’s random testing rules.
Expert Help with Policy and Supervisor Training
A compliant program starts with a solid foundation: a clear, written drug and alcohol policy. We help you create and maintain a policy that reflects current PHMSA regulations. But a policy is only effective if your leaders know how to apply it. That’s why we also provide essential supervisor training for reasonable suspicion. Equipping your supervisors to recognize and document signs of impairment is critical for workplace safety and is a key part of your regulatory responsibility. This proactive training protects your employees and your business.
24/7 On-Site and Mobile Collections
Pipeline operations don’t stick to a 9-to-5 schedule, and neither do we. Our 24/7 on-site and mobile collection services are designed for the realities of your industry. Whether you’re at a remote worksite in the Permian Basin or need an emergency post-accident test in the middle of the night, our team responds quickly. On-site testing minimizes operational downtime by bringing the collection process directly to your employees. This rapid, reliable service is essential for maintaining safety and ensuring you can respond to incidents immediately, anytime and anywhere.
Related Articles
- PHMSA Background Checks | Pipeline Operator Screenings
- PHMSA Background Checks for Pipeline Safety | DOT Compliant
Frequently Asked Questions
Am I really responsible for drug testing contractors? Yes, you are. The PHMSA regulations are clear that anyone performing a safety-sensitive function on your pipeline must be part of a compliant drug testing program. As the operator, you are ultimately accountable. You must either enroll your contractors' covered employees in your own random testing pool or get documented proof that their company runs a compliant program of its own. Simply taking their word for it is not enough to pass an audit.
We're a small operator. How can we manage a compliant random testing program? This is a common challenge, and it’s exactly why many small to mid-sized companies join a testing consortium. A consortium pools employees from multiple companies together, creating a large, scientifically valid group for random selection. Partnering with a Third-Party Administrator (TPA) to manage your consortium membership is the easiest way to handle this. The TPA takes care of the random selections, notifications, and record-keeping, ensuring you meet your annual quotas without the administrative burden.
What is the first thing I should do if an employee fails a drug test? Your first and most important action is to immediately remove that employee from any safety-sensitive duties. They cannot perform any covered function until they successfully complete the entire DOT-regulated return-to-duty process. This formal process must be overseen by a qualified Substance Abuse Professional (SAP) and involves evaluation, education or treatment, and follow-up testing.
My supervisors are hesitant to report reasonable suspicion. What's my risk? The risk is significant. When a supervisor fails to act on a legitimate concern about impairment, they expose your company, your crew, and the public to potential harm. If an incident were to occur, this inaction could create serious legal and financial liability for your business. The best way to address this is with formal training. When supervisors are properly trained to identify and document specific, observable signs of impairment, they gain the confidence to make the right call and protect everyone.
Do I need to conduct a post-accident test for every single incident? Not for every minor event, but the rules are specific. PHMSA requires post-accident testing following any incident that results in a fatality, an injury requiring immediate medical treatment away from the scene, or what is defined as significant property damage. Since the timeframes for testing are very tight (eight hours for alcohol, 32 for drugs), it is critical to have a clear response plan in place before an accident happens.