DOT Drug Testing Locations Upper Marlboro, MD
Our Local DOT Drug testing facilities in Upper Marlboro, MD and the surrounding areas provide DOT Drug Testing, DOT Alcohol Testing, DOT Physicals, Consortium enrollment and other DOT services for Employers, Single operators and all DOT modes who are required to comply with 49 CFR Part 40 in Upper Marlboro, MD including FMCSA, FTA, FAA, USCG, FRA and PHMSA . Testing centers are within minutes of your home or office and same day service is available in most cases.
Scheduling a DOT test is Fast and Easy, call our scheduling department or schedule your test online 24/7
* You must register by phone or online to receive your donor pass/registration prior to proceeding to the testing center.
Onsite Only 4.3 miles
Largo, MD 20774
11435 ABBOTTSWOOD CT 6.0 miles
UPPER MARLBORO, MD 20774
11435 ABBOTTSWOOD CT 6.0 miles
LARGO, MD 20774
12555 CENTRAL AVE. STE A&F 6.2 miles
CHINO, CA 91710
9141 ALAKING CT STE 112 6.5 miles
CAPITOL HEIGHTS, MD 20743
4355 FORESTVILLE RD APT 302 6.9 miles
FORESTVILLE, MD 20747
11947 WINGED FOOT CT 7.1 miles
WALDORF, MD 20602
1600A BRIGHTSEAT RD APT 301 7.6 miles
HYATTSVILLE, MD 20785
8700 CENTRAL AVE STE 204 7.7 miles
LANDOVER, MD 20785
3060 MITCHELLVILLE RD 8.0 miles
BOWIE, MD 20716
4000 Mitchellville Rd Ste A112, 9.1 miles
Bowie, MD 20716
7700 OLD BRANCH AVE E108 9.4 miles
CLINTON, MD 20735
3510 HEIDI LN 9.7 miles
SPRINGDALE, MD 20774
4451 PARLIAMENT PL STE G 10.3 miles
LANHAM, MD 20706
12200 ANNAPOLIS RD, SUITE 120 10.5 miles
GLENN DALE, MD 20769
5606 HOLTON LN 10.6 miles
TEMPLE HILLS, MD 20748
4121 MINNESOTA AVE NE 12.0 miles
WASHINGTON, DC 20019
10117 PALAMAR DR 12.5 miles
LANHAM, MD 20706
3169 BRAVERTON ST, STE 200 12.8 miles
EDGEWATER, MD 21037
75 MAYO RD 13.2 miles
EDGEWATER, MD 21037
3059 SOLOMONS ISLAND RD 13.3 miles
EDGEWATER, MD 21037
2170 OLD WASHINGTON RD STE 111 13.3 miles
WALDORF, MD 20601
7933 BELLE POINT DR 14.6 miles
GREENBELT, MD 20770
2661 RIVA RD BLDG 600 SUITE 610 14.9 miles
ANNAPOLIS, MD 21401
6201 Greenbelt Rd, Suite M3 15.1 miles
College Park, MD 20740
920 VARNUM ST NE 15.8 miles
WASHINGTON, DC 20017
12070 OLD LINE CTR STE 201 15.8 miles
WALDORF, MD 20602
3070 HEATHCOTE RD 16.2 miles
WALDORF, MD 20602
1419 FOREST DR STE 104 16.3 miles
ANNAPOLIS, MD 21403
911 U ST NW 16.4 miles
WASHINGTON, DC 20001
3460 Old Washington Rd Ste 104, 16.4 miles
Waldorf, MD 20602
3500 OLD WASHINGTON RD STE 104 16.4 miles
WALDORF, MD 20602
815 CONNECTICUT AVE NW 16.6 miles
WASHINGTON, DC 20006
820 Bestgate Rd, 16.7 miles
Annapolis, MD 21401
225 REINEKERS LN 16.7 miles
ALEXANDRIA, VA 22314
3422 GEORGIA AVE NW 16.8 miles
WASHINGTON, DC 20010
1145 19TH ST NW STE 601 16.9 miles
WASHINGTON, DC 20036
1145 19th Street NW Suite 506 17.0 miles
Washington, DC 20036
1140 19TH ST NW STE 700 17.0 miles
WASHINGTON, DC 20036
2029 K ST NW STE 301 17.0 miles
WASHINGTON, DC 20006
10452 BALTIMORE AVE 17.2 miles
BELTSVILLE, MD 20705
6020 RICHMOND HWY STE 100 17.2 miles
ALEXANDRIA, VA 22303
4729 SELLMAN RD 17.4 miles
BELTSVILLE, MD 20705
2440 M St NW Ste 414, 17.4 miles
Washington, DC 20037
8101 HINSON FARM RD STE 314 18.4 miles
ALEXANDRIA, VA 22306
7609 RICHMOND HWY STE B 18.5 miles
Alexandria, VA 22306
3263 COLUMBIA PIKE 18.6 miles
ARLINGTON, VA 22204
1430 SOLOMONS ISLAND RD STE 6 18.8 miles
HUNTINGTOWN, MD 20639
4320 SEMINARY RD 19.1 miles
ALEXANDRIA, VA 22304
8121 GEORGIA AVE STE 208 19.2 miles
SILVER SPRING, MD 20910
4527 DUKE ST 19.3 miles
ALEXANDRIA, VA 22304
1401 BLAIR MILL RD APT 1222 19.4 miles
SILVER SPRING, MD 20910
3301 WILSON BLVD 19.4 miles
ARLINGTON, VA 22201
130 HOSPITAL RD 19.5 miles
PRINCE FREDERICK, MD 20678
110 HOSPITAL RD STE 310 19.5 miles
PRINCE FREDERICK, MD 20678
995 PRINCE FREDERICK BLVD #107 19.6 miles
PRINCE FREDERICK, MD 20678
P. O. BOX 376 19.7 miles
LAUREL, MD 20725
On-site ONLY 19.9 miles
LAUREL, MD 20724
5130 DUKE ST STE 10 20.0 miles
ALEXANDRIA, VA 22304
5550 COLUMBIA PIKE APT 551 20.0 miles
ARLINGTON, VA 22204
Onsite Only 20.1 miles
Hughesville, MD 20637
1005 N GLEBE RD STE 140 20.2 miles
ARLINGTON, VA 22201
96 ARMORY RD STE 102 20.5 miles
PRINCE FREDERICK, MD 20678
408 HEADQUARTERS DR STE 3-B 20.7 miles
MILLERSVILLE, MD 21108
9801 GEORGIA AVE STE 222 21.0 miles
SILVER SPRING, MD 20902
6144 EDSALL RD APT 303 21.0 miles
ALEXANDRIA, VA 22304
537 RITCHIE HWY STE 2G 21.2 miles
SEVERNA PARK, MD 21146
13823 OUTLET DR 21.3 miles
SILVER SPRING, MD 20904
6064 Arlington Blvd, Falls Church Medical Center 21.3 miles
Falls Church, VA 22044
ONSITE ONLY 21.6 miles
ANNAPOLIS, MD 21409
3059 MARSHALL HALL RD 21.8 miles
BRYANS ROAD, MD 20616
6226 OLD FRANCONIA RD 21.8 miles
ALEXANDRIA, VA 22310
1667 Homewood Landing Rd 22.0 miles
Annapolis, MD 21409
11002 VEIRS MILL RD STE 700 22.2 miles
WHEATON, MD 20902
8218 WISCONSIN AVE STE 208 22.2 miles
BETHESDA, MD 20814
3676 Alpen Greenway 22.6 miles
Burtonsville, MD 20866
5590 GENERAL WASHINGTON DR 22.6 miles
ALEXANDRIA, VA 22312
8768 SUSINI DR 22.6 miles
LAUREL, MD 20723
6715 Little River Turnpike Ste 300 22.9 miles
Annandale, VA 22003
200 Hospital Dr Ste 103, 23.4 miles
Glen Burnie, MD 21061
6120 BRANDON AVE STE 105 23.4 miles
SPRINGFIELD, VA 22150
5501 BACKLICK RD 23.4 miles
SPRINGFIELD, VA 22151
201 CENTENNIAL ST B1 23.4 miles
LA PLATA, MD 20646
5510 ALMA LN STE 200 23.5 miles
SPRINGFIELD, VA 22151
808 LANDMARK DR STE 116 23.7 miles
GLEN BURNIE, MD 21061
920 W BROAD ST STE B 23.9 miles
FALLS CHURCH, VA 22046
403 CHARLES ST 3 24.3 miles
LA PLATA, MD 20646
3708 MOUNTAIN RD 24.4 miles
PASADENA, MD 21122
802 Cromwell Park Dr STE H-Cromwell Business Park 24.8 miles
Glen Burnie, MD 21061
(Don't see a DOT drug testing location near you, call us at (800) 221-4291)
Accredited Drug Testing can schedule your DOT drug test at any of our Upper Marlboro, MD Drug testing locations, Call us Today!
"When you need a test, choose the best"
How to schedule a DOT drug test in Upper Marlboro, MD
To schedule any type of DOT drug test or alcohol test in Upper Marlboro, MD call our local scheduling department at (800) 221-4291. You may also schedule your DOT drug test online utilizing our express scheduling registration system by selecting your test and completing the Donor Information/Registration Section. You must register for the test prior to proceeding to the testing center.
The zip code you enter will be used to determine the closest DOT drug or DOT alcohol testing center which performs the type of test you have selected. A donor pass/registration form with the local testing center address, hours of operation and instructions will be sent to the e-mail address you provided. Take this form with you or have it available on your smart phone to provide to the testing center. No appointment is necessary in most cases. However, you must complete the donor information section and pay for the test at the time of registration.
Our laboratories are SAMHSA certified and all test results are verified by our in-house licensed physicians who serve as Medical Review Officers (MRO).
In addition to providing DOT drug testing and DOT breath alcohol testing in Upper Marlboro, MD , Accredited Drug Testing also has additional testing centers throughout the metropolitan area and surrounding cities.
On the road or on vacation, no worries, Accredited Drug Testing has over 20,000 testing centers in all cities Nationwide and we can schedule your test, ANYWHERE, ANYTIME!
What are the DOT drug testing requirements?
In 1991, the Omnibus Transportation Employee Testing Act created the following DOT Agencies which established drug and alcohol testing regulations to ensure that aircraft, trains, trucks, and buses were operated in a safe and responsible manner. As an employer or individual operating in a "Safety Sensitive" position, it is important to understand how these regulations impact you.
49 CFR Part 40 (commonly known as part 40) explains:
- How drug and alcohol testing is conducted
- Who is authorized to participate in the drug and alcohol testing program
- What employees must do before they may return to duty after a drug and/or alcohol violation
Each DOT Agency and the USCG have specific regulations that cover:
- The agency's prohibitions on drug and alcohol use
- Who is subject to comply with these regulations
- What type of testing is required
- When testing is required
- Consequences of non-compliance
FMCSA Drug and Alcohol Clearinghouse
The Federal Motor Carrier Safety Administration (FMCSA) amended its rule that would establish requirements for commercial driver's license employers and individuals with regards to the drug and alcohol clearing house which will take affect on January 6, 2020.
The FMCSA Clearinghouse is a secure online database that will allow employers, the FMCSA, State Driver Licensing Agencies, State Law Enforcement and individual CDL operators to access real time important information about a CDL Driver's drug and alcohol program violations and the ultimate goal of this database is to enhance safety on our Nation's public roadways.
For specific requirements, click the appropriate agency listed below in which you or your company is regulated by. Ask about our DOT Complete Compliance Package!
- Federal Aviation Administration (FAA) (14 CFR Part 120)
- United States Coast Guard (USCG) (46 CFR Parts 4,5 and 16)
- Federal Motor Carrier Safety Administration (FMCSA) (49 CFR Part 382)
- Pipeline and Hazardous Materials Safety Administration (PHMSA) (49 CFR Part 199)
- Federal Transit Administration (FTA) (49 CFR Part 655)
- Federal Railroad Administration (FRA) (49 CFR Part 219)
The Opioid Overdose Crisis
Every day, more than 130 people in the United States die after overdosing on opioids. The misuse of and addiction to opioids,including prescription pain relievers, heroin, and synthetic opioids such as fentanyl, is a serious national crisis that affects public health as well as social and economic welfare. The Centers for Disease Control and Prevention estimates that the total "economic burden" of prescription opioid misuse alone in the United States is $78.5 billion a year, including the costs of healthcare, lost productivity, addiction treatment, and criminal justice involvement.
- Roughly 21 to 29 percent of patients prescribed opioids for chronic pain misuse them.
- Between 8 and 12 percent develop an opioid use disorder.
- An estimated 4 to 6 percent who misuse prescription opioids transition to heroin.
- About 80 percent of people who use heroin first misused prescription opioids.
- Opioid overdoses increased 30 percent from July 2016 through September 2017 in 52 areas in 45 states.
- The Midwestern region saw opioid overdoses increase 70 percent from July 2016 through September 2017.
- Opioid overdoses in large cities increase by 54 percent in 16 states.
In the late 1990s, pharmaceutical companies reassured the medical community that patients would not become addicted to prescription opioid pain relievers, and healthcare providers began to prescribe them at greater rates. This subsequently led to widespread diversion and misuse of these medications before it became clear that these medications could indeed be highly addictive.3,4 Opioid overdose rates began to increase. In 2017, more than 47,000 Americans died as a result of an opioid overdose, including prescription opioids, heroin, and illicitly manufactured fentanyl, a powerful synthetic opioid.1That same year, an estimated 1.7 million people in the United States suffered from substance use disorders related to prescription opioid pain relievers, and 652,000 suffered from a heroin use disorder (not mutually exclusive)
DOT Compliance Checklist in Upper Marlboro, MD
DOT 49 CFR Part 40 Requirements for Safety Sensitive Employees.
(FMCSA-FAA-USCG-FRA-PHMSA-FTA)
- Pre-Employment Tests
- Correct Federal Custody & Control Form (CCF)
- Substance Abuse Professional Process
- Regulations on File
- Random Pool Testing
- *Supervisor Training
- *Written Policy
- Post-Accident Testing Situations
- Previous Employers Checks
- Employee Education
- Record Keeping
- Removal of covered Employee
- Designated Employer Representative
* In addition, any company which employs 2 or more covered employees must have a written drug and alcohol policy and all supervisors must complete the DOT Supervisor Reasonable Suspicion Training. (Click here to learn more about our online training programs)
If a DOT covered employee or company does not have a copy of the original pre-employment drug test with a negative result, then a new DOT pre-employment drug test must be conducted, and the result maintained on file.
The department of transportation (DOT) requires that all DOT regulated "safety sensitive" employees have on file a negative DOT pre-employment drug test result and be a member of a DOT approved random selection consortium. In addition, if a DOT regulated company has more than one "safety sensitive" employee, the employer must also have a written DOT drug and alcohol policy and an on-site supervisor must have completed supervisor training for reasonable suspicion of illegal drug use or impairment.
To be compliant with DOT regulations, a company's DOT drug and alcohol testing program must have the following components. Failing to comply can result in significant fines and penalties.
What is a DOT Drug Test in Upper Marlboro, MD ?
On January 1, 2018 the Department of Transportation (DOT) issued a new rule which altered the DOT 5 panel urine test. Employers and individuals should be aware that the current DOT drug test is still a urine drug test, collected by qualified collectors, analyzed at a SAMHSA certified laboratory and reviewed by a licensed Medical Review Officer. Below you will find a list of the drugs that are screened for in the DOT 5 panel urine drug test:
- Marijuana (THC)
- Cocaine
- Amphetamines
- Opioids**
- Phencyclidine (PCP)
- Pre-employment
- Random
- Reasonable suspicion
- Return to Duty
- Post-Accident
- Follow Up
** Special note: Opioids' was previously called Opiates' and all DOT drug tests will continue to include confirmation testing for Codeine, Morphine, and 6-AM (heroin) when necessary.
In the January rule change, the Department of Transportation (DOT) also added initial screening and confirmation testing for the semi-synthetic opioids Hydrocodone, Hydromorphone, Oxycodone, and Oxymorphone to this Opioids group
When is a DOT drug test required in Upper Marlboro, MD ?
All safety sensitive employees regardless of DOT agency are required for the following drug testing and/or alcohol testing based on each situation:
What is DOT pre employment testing in Upper Marlboro, MD ?
As a new hire or a current employee transferring from a non-safety sensitive function into a safety sensitive function (even with the same employer), you are required to submit to a DOT pre employment drug test.
Some employers may, but are not required to, conduct pre employment alcohol testing. Only after your employer receives a negative pre employment DOT drug test result (and negative alcohol test result - if administered) may you begin performing in a safety-sensitive capacity.
What is random DOT Drug Testing in Upper Marlboro, MD ?
All safety sensitive employees are subject to unannounced random drug & alcohol testing. Alcohol testing is administered just prior to, during or just after performing safety-sensitive functions. Depending on the industry specific regulations, you may only be subject to random drug testing.
Listed below are the current (2019) DOT random testing rates for each DOT agency.
The following chart outlines the annual minimum drug and alcohol random testing rates established within DOT Agencies and the USCG for 2019. | ||
DOT Agency | 2019 Random Drug Testing Rate | 2019 Random Alcohol Testing Rate |
---|---|---|
Federal Motor Carrier Safety Administration [FMCSA] | 25% | 10% |
Federal Aviation Administration [FAA] | 25% | 10% |
Federal Railroad Administration [FRA] | 25% - Covered Service 50% - Maintenance of Way * | 10% - Covered Service 25% - Maintenance of Way * |
Federal Transit Administration [FTA] | 50% | 10% |
United States Coast Guard [USCG] (with the Dept. of Homeland Security) | 50% | N/A |
The following chart outlines the annual minimum drug and alcohol random testing rates established within DOT Agencies and the USCG for 2019. |
DOT Agency 2019 Random Drug Testing Rate 2019 Random Alcohol Testing Rate |
---|
Federal Motor Carrier Safety Administration [FMCSA] 25% 10% |
Federal Aviation Administration [FAA] 25% 10% |
Federal Railroad Administration [FRA] 25% - Covered Service / 50% - Maintenance of Way * 10% - Covered Service / 25% - Maintenance of Way * |
Federal Transit Administration [FTA] 50% 10% |
United States Coast Guard [USCG] (with the Dept. of Homeland Security) 50% N/A |
What is reasonable suspicion DOT drug testing in Upper Marlboro, MD ?
Safety sensitive individuals and employees are required to submit to any test (whether it is a drug test, alcohol test or both) that a supervisor requests based on reasonable suspicion. Reasonable suspicion means that one or more trained supervisors reasonably believes or suspects that you are under the influence of drugs or alcohol. Supervisors cannot require testing based on a hunch or guess alone; their suspicion must be based on observations concerning your appearance, behavior, speech and smell that are usually associated with drug or alcohol use
What is return to duty DOT Drug Testing in Upper Marlboro, MD ?
If you have violated the prohibited drug & alcohol testing rules, you are required to take a return to duty drug and/or alcohol test before being allowed to return to a safety-sensitive function for any DOT regulated employer. You may also be subject to unannounced follow-up testing for at least 6 times in the first 12 months following your return to active safety-sensitive service.
Return-to-duty tests must be conducted under direct observation.
What is DOT post accident drug testing Upper Marlboro, MD ?
If you are involved in an event (accident, crash, etc.) meeting certain criteria of the DOT agency, a post-accident drug test will be required. In most cases you will then have to take a drug and alcohol test if you are involved in a qualifying crash. Each DOT agency may have specific rules with regards to what is a post-accident test, for example, the FRA requires a blood specimen for drug testing and an alcohol test.
If you are involved in a qualifying accident, you are required to remain available for this testing and are not permitted to refuse testing.
Remember: Safety-sensitive employees are obligated by law to submit to and cooperate in drug & alcohol testing mandated by DOT regulations.
What is DOT follow up drug testing Upper Marlboro, MD ?
DOT follow up testing occurs when an individual has violated the drug and alcohol testing rules. The amount of follow-up testing you receive is determined by a Substance Abuse Professional (SAP) and may continue for up to 5 years. This means the SAP will determine how many times you will be tested (at least 6 times in the first year), for how long, and for what substance (i.e. drugs, alcohol, or both). Your employer is responsible for ensuring that follow-up testing is conducted and completed. Follow up testing is in addition to all other DOT required testing and all follow-up tests will be observed. For more information on the SAP process or to locate a Substance Abuse Professional in Upper Marlboro, MD simply call us at (800)221-4291
When you need a test, choose the best!
DOT Drug Testing Services Upper Marlboro, MD
(800)221-4291
For more information regarding the effects of drug abuse - Click Here
For more information on a drug free work place - Click Here
Handy Resources
Comprehensive Online Resources for Drug Testing
- National Institute on Drug Abuse (NIDA)
Provides comprehensive information on drug testing and its role in substance use disorder treatment.
- FDA: Drug Testing
Explains the FDA's role and regulations concerning drug testing for consumers.
- PDR.net
Provides detailed drug information and safety updates through a mobile-friendly platform.
- BeSafeRx - FDA
Resource by the FDA to help consumers identify and choose safe online pharmacies.
- SAMHSA: Drug Testing Resources for the Workplace
Resources and guidelines for drug testing in the workplace.
- Drugs.com
Provides drug information, side effects, and interactions for consumers and professionals.
- Drug Abuse Screening Test (DAST)
Online version of the DAST to help individuals assess whether they have a drug problem.
- Merck Manuals
Consumer-friendly medical resource providing comprehensive information on a wide array of health topics, including drug testing.
- SAMHSA Store
Provides access to resources and publications on substance use prevention and treatment.
- National Association of Boards of Pharmacy (NABP)
Information on state boards of pharmacy and regulations, including those related to drug testing.
- CDC: Workplace Health Promotion
CDC's resources on substance use and drug testing in the workplace.
- Mayo Clinic: Drug Testing
General information about the procedures and types of drug tests.
- MedlinePlus: Drug Testing
Offers information about various drug tests and their uses in medical diagnosis and treatment.
- University of Rochester Medical Center Health Encyclopedia
Provides a detailed entry on drug testing, including how tests are conducted and what they detect.
- World Health Organization (WHO)
International guidelines and information on public health, including substance abuse and drug testing.
- Healthline: Drug Testing
Consumer health site offering information on how drug tests work and what they look for.
- WebMD: Drug Testing
Provides a patient-oriented overview of drug testing and its purposes.
- National Center for Biotechnology Information (NCBI)
Provides a vast database of scientific studies, including research on drug testing and its effectiveness.
AI Overview
Understanding DOT Drug Testing
DOT drug testing is a regulatory requirement enforced by the United States Department of Transportation to ensure that operators and safety-sensitive personnel in the transportation industry are compliant with federal drug-free workplace laws. This testing applies to millions of transportation professionals across various sectors, including aviation, trucking, railways, public transit, and pipelines.
Regulated Entities and Individuals
- Commercial Motor Vehicle Drivers: Includes anyone operating commercial vehicles that require a Commercial Driver’s License (CDL).
- Aviation Professionals: Applies to pilots, air traffic controllers, flight attendants, and aircraft maintenance personnel.
- Railroad Operators: Covers those who operate trains, prepare vehicles for service, and dispatch operations on the railway.
- Public Transit Workers: Encompasses bus drivers, mechanics, and any staff responsible for the safety of public transport operations.
- Pipeline Operators: Includes individuals involved in the operation and maintenance of pipeline facilities.
What Substances Are Tested?
The DOT drug testing program focuses on several major classes of drugs:
- Amphetamines and Methamphetamines
- Opiates, including heroin, codeine, and morphine
- Cocaine
- THC (tetrahydrocannabinol), found in marijuana
- Phencyclidine (PCP)
Procedure of DOT Drug Testing
The testing process is standardized to prevent tampering and ensure consistent results:
- Sample Collection: Urine samples are collected under strict conditions to ensure that they are not tampered with or substituted.
- Screening Tests: Initial screenings are conducted using immunoassay techniques. If a test is positive, further confirmation is required.
- Confirmation Tests: Confirmatory testing using more precise methods like Gas Chromatography/Mass Spectrometry (GC/MS) confirms the presence of specific drugs.
- Review Process: An MRO reviews confirmed positive results to determine if there is a legitimate medical explanation before reporting the result to the employer.
Implications of Non-Compliance
Non-compliance with DOT drug testing regulations can lead to significant consequences:
- Removal from Safety-Sensitive Duties: Employees testing positive are immediately removed from their safety-sensitive duties.
- Rehabilitation and Return-to-Duty Testing: Before returning to duty, employees must undergo an evaluation by a Substance Abuse Professional (SAP), complete any prescribed treatment, and have negative results on follow-up tests.
- Employment Consequences: Additional consequences may include job suspension, termination, or other disciplinary actions based on the employer’s policies.
DOT drug testing serves as a critical safeguard in the transportation industry, promoting a safe and responsible work environment while ensuring public safety and compliance with federal regulations.
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Local Area Info: Upper Marlboro, Maryland
Upper Marlboro, officially the Town of Upper Marlboro, is the seat of Prince George's County, Maryland in the United States. The population within the town limits was 631 at the 2010 U.S. Census, although Greater Upper Marlboro is many times larger.
Upper Marlboro was established in 1706 as "Marlborough Town", after John Churchill, 1st Duke of Marlborough, an ancestor of Winston Churchill. In 1744, the town was renamed to "Upper Marlborough". In the late 19th century, the town's name changed from Upper Marlborough to Upper Marlboro. The name change is linked to a postal clerk who felt that the last three letters, "ugh", did not properly fit on the rubber stamps being used at the time. By 1893, postal guides were referring to the town as Upper Marlboro and the name stuck, despite a proposed ballot to have it changed back in 1968.
The area of Upper Marlboro was first settled around 1695. It was named after John Churchill, 1st Duke of Marlborough, an ancestor of Winston Churchill. The land, which was to become the town, was part of several estates known as Grove Landing, Meadows, and Darnall's Chance, owned by the Brooke, Beall, and Darnall families, respectively.