Asbestos testing labs in Maryland
4 lab sites accredited by NIST NVLAP · as listed on November 7, 2026
About this list
On November 7, 2026 the NIST NVLAP directory listed 4 lab sites in Maryland (4 cities) accredited for Asbestos Fiber Analysis. Their scope documents show 4 sites accredited for bulk analysis (PLM) and 2 sites for airborne analysis (TEM).
Sorted A to Z. A listing is not an endorsement and does not say whether the lab takes samples from homeowners. Confirm the test you need with the lab before you send samples.
Accreditation as listed by NIST NVLAP on November 7, 2026; confirm with the lab.
Accredited asbestos labs in Maryland (4)
| Lab | City | Bulk (PLM) | Airborne (TEM) | NVLAP lab code | Accreditation expires | Phone |
|---|---|---|---|---|---|---|
| AMA Analytical Services, Inc. | Lanham | Yes | Yes | 101143-0 | June 30, 2027 | (301) 459-2640 |
| EMSL Analytical, Inc. | Beltsville | Yes | Yes | 200293-0 | December 31, 2026 | (301) 303-2561 |
| MDH-Air Quality Laboratory | Baltimore | Yes | No | 101523-0 | March 31, 2027 | Not stated on the list |
| Nan Technologies, Inc. | Halethorpe | Yes | No | 600284-0 | June 30, 2027 | (410) 800-4263 |
Maryland asbestos rules in brief
- Who runs the program: The Maryland Department of the Environment licenses asbestos abatement businesses and receives asbestos project notifications under COMAR Title 26, Subtitle 11, Chapter 21 (Control of Asbestos). (COMAR 26.11.21.04) source
- Licensing: Maryland requires any business or public unit doing an asbestos project to hold a license from the Department of the Environment. (COMAR 26.11.21.04) source
- Notice before work: In Maryland, anyone planning an asbestos project that is a NESHAP source must notify the Maryland Air and Radiation Management Administration in writing as 40 CFR Part 61 requires, and must also notify U.S. EPA Region III. Licensed businesses and public units must also notify the state in writing before other asbestos projects, except operations-and-maintenance work. (COMAR 26.11.21.03) source
Read on the official pages linked, November 15, 2026, and re-checked by a second reader. A summary, not legal advice: rules change, so confirm with the agency before work starts.
Older homes in Maryland and where the labs are
In Maryland, 1,311,002 of 2,560,784 housing units (51%) were built before 1980, rank 21 of 45 states and DC by that share (Census ACS 2020–2024, table B25034). Homes of that age are the ones most likely to contain asbestos-containing materials such as insulation, flooring and popcorn ceilings. The counties with the most older homes, and how far each is from the nearest NVLAP-accredited asbestos lab site:
| County | Homes built before 1980 | Share of homes | Nearest listed lab site |
|---|---|---|---|
| Baltimore City | 240,794 | 82% | 2 mi: MDH-Air Quality Laboratory, Baltimore |
| Baltimore County | 207,945 | 59% | 9 mi: MDH-Air Quality Laboratory, Baltimore |
| Montgomery County | 200,525 | 49% | 13 mi: EMSL Analytical, Inc., Beltsville |
| Prince George's County | 196,505 | 54% | 5 mi: AMA Analytical Services, Inc., Lanham |
| Anne Arundel County | 106,243 | 45% | 14 mi: AMA Analytical Services, Inc., Lanham |
| Harford County | 41,649 | 39% | 22 mi: MDH-Air Quality Laboratory, Baltimore |
| Frederick County | 37,601 | 35% | 37 mi: Eurofins Built Environment Testing East- Chantilly, VA, Chantilly |
| Washington County | 36,678 | 57% | 50 mi: Eurofins Built Environment Testing East- Chantilly, VA, Chantilly |
Over 50 miles from the nearest listed site: Washington County. Many labs accept samples by mail; ask before you ship. Distance runs from the county’s centre (mean of its ZIP-code points) to the lab’s ZIP-code point, in a straight line. Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates, table B25034 (Year structure built), county level, downloaded November 15, 2026.
How far the labs stretch in Maryland
Maryland has 4 listed asbestos lab sites for about 1,311,002 homes built before 1980: one site per 327,750 older homes, the 22th most stretched of 35 states with a listed site (the middle state has one per 455,948).
- 4 of the 4 sites are accredited for material samples by PLM (pieces of popcorn ceiling, vinyl floor tile, pipe wrap or other building material).
- 2 of the 4 sites are accredited for air samples by TEM (air samples, such as the clearance test after asbestos removal).
Counts from the accreditation list; homes from Census ACS 2020–2024 (B25034). A site count, not capacity: one lab can process many samples, and many accept samples by mail.
Labs here that print a homeowner price
- EMSL Analytical, Inc.: $95.00 per sample · lab’s page
As printed on the lab’s website, read November 13, 2026. Confirm the price and the test with the lab. Compare all published prices, including labs in other states.
Bulk (PLM) and Airborne (TEM) are the two parts of the NVLAP program as NIST names them; “Yes” means the lab’s scope document lists a method in that category. Other states: all states.
Other home hazard tests: Lead paint testing · Mold testing.