Like many states, Wyoming does have a few rules and regulations when it comes to drug testing employees. While Wyoming does not mandate employee drug testing, the state does offer certain incentives for employers that have a drug free workplace policy. There are also certain guidelines that Wyoming employers must follow. Let National Drug Screening, Inc. help you understand what is required in the state of Wyoming. Whether you are located in or around Casper, Cheyenne, Gillette or Sheridan, we make it easy for you to find drug testing centers, qualified medical review officers and more. For more information about drug screening in Wyoming, call National Drug Screening at 1-866-843-4545.

Child custody cases and divorce cases often require a drug test, you can call today to schedule an immediate drug test such as a urine test or hair test.  Same day service can be available for some locations in Wyoming for drug and alcohol testing.

Laws about Drug Testing in Wyoming

While Wyoming does not have any laws stating that private employers must be drug tested, drug testing is required for state employees. This includes contractors or other individuals who will be performing work for the state of Wyoming. Employees working in high-risk professions such as transportation or aviation must also submit to drug testing.

Private employers are free to develop their own drug testing policies as they see fit. Most employers implement a drug testing policy that includes the following:

  • Pre-employment drug screening
  • Post-accident drug screening
  • Random drug screening
  • Drug screening with reasonable suspicion
  • Drug testing for ecstasy, MDMA, oxycodone

Drug testing requirements – lab-based urine only for employee drug testing; urine, hair or saliva for applicant testing (lab or on-site).  Drug testing is for Cocaine, marijuana, opiates, amphetamines and PCP.  Instant, on site or point of collection testing (POCT) is allowed for pre-employment testing.

If your company has a drug free workplace policy, keep in mind that any job announcements you post must tell potential applicants that drug testing is required. You must also have a clear written drug free workplace policy that employees can consult and there is a requirement of an employee assistance program (EAP). The policy must outline the consequences of a positive drug test result.

Drug Screening and Workers Compensation in Wyoming

The Wyoming State Legislature passed a bill in 2006 allowing employers to receive for a 5% discount on workers compensation insurance premiums if they have a qualifying drug free workplace policy. According to Wyoming law, the drug free workplace policy must include substance abuse testing prior to employment, at random intervals, drug and alcohol screening for reasonable suspicion, and substance abuse screening after a workplace accident or injury. If your company has a qualifying drug free workplace policy in place, you should submit a copy of the policy to the Wyoming Workers’ Compensation office to qualify for your discount.

Workers comp benefits and unemployment benefits can be denied due to a positive drug test.

Drug Screening Services Available in Wyoming

National Drug Screening offers a wide variety of drug testing services to businesses in Wyoming. In addition to drug testing locations throughout the state, we also offer you the services of our qualified medical review officers. Our MROs will give you prompt, accurate and fair drug test results. National Drug Screening can also help you implement your own drug free workplace policy, and we can help you maintain DOT compliance. You can also take advantage of our immediate drug testing services. Our immediate drug tests include:

  • Alcohol testing
  • Urine drug screening
  • Hair drug testing
  • Oral fluid drug screening
  • ETG alcohol testing
  • And much more!


Testing locations in Wyoming

South Big Horn County Hospital BASIN


BASIN , Wyoming 82410

Drug Services of Natrona County Casper

1988 E 1st St

Casper , Wyoming 82601

Employee Health Solutions Casper

419 S Washington St Ste 202

Casper , Wyoming 82601

Employment Health Services Casper

351 N Lennox St

Casper , Wyoming 82601

EMSI-Casper Casper

805 W. Platte Rd

Casper , Wyoming 82601



CASPER , Wyoming 82601


2115 E 12TH ST

CASPER , Wyoming 82601

Occupational Health Testing Services CASPER

1641 E 2ND ST

CASPER , Wyoming 82601

Colorado Health Medical Group Cheyenne

5050 Powderhouse Rd

Cheyenne , Wyoming 82009

Compliance Administrive Services Cheyenne

3415 Cheyenne St

Cheyenne , Wyoming 82001

Drug & Alcohol Testing Service, Inc. CHEYENNE


CHEYENNE , Wyoming 82001

Drug Testing Center of Cheyene Cheyenne

205 W 18th St

Cheyenne , Wyoming 82001

Employee On-Boarding Specialties, LLC CHEYENNE


CHEYENNE , Wyoming 82001

Medihorizons-Cheyenne Family Practice Cheyenne

1950 Bluegrass Cir Ste 200

Cheyenne , Wyoming 82009

Medihorizons-Health Reach Cheyenne

2030 Bluegrass Cir

Cheyenne , Wyoming 82009

West Park Hospital District Cody

707 Sheridan Ave

Cody , Wyoming 82414

Alcohol & Drug Testing Services, LLC Douglas

222 S 5th Street

Douglas , Wyoming 82633

Evanston Regional Hospital Evanston

190 Arrowhead Dr

Evanston , Wyoming 82930



EVANSTON , Wyoming 82930

CCMH Walk in Clinic-Campbell County Ho Gillette

407 S Medical Arts Ct Ste F

Gillette , Wyoming 82716

Employemnt Testing Services, Inc Gillette

3805 South Douglas Highway

Gillette , Wyoming 82718

Medical Arts Labortory Gillette

407 S Medical Arts Ct Ste E

Gillette , Wyoming 82716

Occupational Testing Services Gillette


Gillette , Wyoming 82718

Occupational Testing, LLC-OTI Gillette

2701 S Douglas Hwy

Gillette , Wyoming 82718

Powder River WorkSafe Testing LLC Gillette

801 E 4th Street

Gillette , Wyoming 82716

Emerg-A-Care Jackson

982 W Broadway

Jackson , Wyoming 83001

Jackson Whole Family Health Jackson

1110 Maple Way

Jackson , Wyoming 83001

South Lincoln Medical Center Kemmerer

711 Onyx Street

Kemmerer , Wyoming 83101

Advanced Medical Services, Inc Laramie

409 Bradley Street Ste #3

Laramie , Wyoming 82072

Wyomed Laboratory Laramie

204 Mccollum St Ste 105

Laramie , Wyoming 82070

Nio Test, LLC Lusk

119 West 3rd Street

Lusk , Wyoming 82225

Niobrara Health & Life Center Lusk

921 S Balancee

Lusk , Wyoming 82225

Grand Teton Medical Clinic Moran

Grand Teton Loop Road

Moran , Wyoming 83012

Medihorizons-TriCounty Medical Center Pine Bluffs

117 East 4th Street

Pine Bluffs , Wyoming 82082

R & A Safety Powell

162 W.North Street

Powell , Wyoming 82435


2221 Elm St

Rawlins , Wyoming 82301

Rawlins Family Medical, PC Rawlins

606 23rd St

Rawlins , Wyoming 82301

Drug Testing Services Riverton

904 West Sunset Dr

Riverton , Wyoming 82501

Western Family Care Riverton

1620 Riverview Rd

Riverton , Wyoming 82501

Wind River Clinic-WorkWise RIVERTON


RIVERTON , Wyoming 82501

Altitude Analysis RockSpring Rock Spring

2620 Commercial Way

Rock Spring , Wyoming 82901

Memorial Hospital of Sweetwater-Lab Rock Springs

1200 College Dr

Rock Springs , Wyoming 82901

Sideline Collections Rock Springs

1031 Elk St

Rock Springs , Wyoming 82901

SST Testing Plus Inc Rock Springs

1695 Sunset Dr #108

Rock Springs , Wyoming 82901

Cedar Health Sheridan

813 Highland Ave

Sheridan , Wyoming 82801

Dr. Michael J. Strahan Sheridan

1333 W 5th St Ste 103

Sheridan , Wyoming 82801

Supervision Services Sheridan

1095 Saberton Ave

Sheridan , Wyoming 82801

Vagtmand Services LLC Sheridan

1309 Coffeen Ave Ste B-1

Sheridan , Wyoming 82801

Crook County Medical Sundance

713 Oak Street

Sundance , Wyoming 82729

US HealthWorks Medical Center Tukwila

6720 Fort Dent Wat, Suite 110

Tukwila , Wyoming 98188

Eastern Wyoming Ambulance Service Wheatland

2450 W Mariposa Pkwy

Wheatland , Wyoming 82201

WY-Test Worland

616 S 7th St

Worland , Wyoming 82401

Medcor @ Yellowstone/Mammoth Clinic Yellowstone National Park

1 Mammoth Hot Springs

Yellowstone National Park , Wyoming 82190