Current News



WACEL has signed a memorandum of Understanding to provide MARTCP Soil and Aggregate Compaction Certificaiton.  The new study guide for this certification is available from the members only side of this website.


WACEL has added the newly revised Concrete Aggregate laboratory exam the Online Testing Platform. WACEL Members can download the new study guides for the updated Concrete Aggregate laboratory certification from the members only side of this website.


WACEL is currently providing the following options for written certification exam testing:

  1. Testing at the WACEL office in Bethesda, Maryland. To register a technician to take a certification exam, call WACEL at 301-799-7401 the day before the test date to determine availability.  Almost all of the time, requests can be honored.  A completed application is required to take a test.  Either bring the application at the time of testing or email it to
  2. Testing at member facilities.  WACEL will conduct written exams at a member’s facility provided there is a minimum of (5) technicians and that the exam space will allow for technicians to be at least six feet apart from one another.
  3. Testing online.  Concrete I, Soil I Special Inspector Field, Reinforced Concrete Special Inspector, Structural Concrete Special Inspector, Foundation Special Inspector and Concrete Masonry Strength Laboratory Technician exams are available online.  Please review the procedure below.
  4. All Practicals must be administered by an approved WACEL proctor.  If  practicals are proctored by in-house staff, the proctor must make a separate video of each test that the technician performs and forward the package of videos to WACEL for grading.

WACEL is currently providing the following options for practical certification exam testing:

  1. Testing internally following the WACEL procedure.  This can be done following the guidelines and submitting videotaping to WACEL.
  2. Testing at member facilities.  WACEL will conduct practical exams at a member’s facility provided there is a minimum of (5) technicians.
  3. Testing at Vulcan Materials  WACEL is offering concrete proficiency exams at Vulcan Materials in Springfield on the second and fourth Tuesday of every month.  Register technicians for concrete practicals below.  

Please email for member facility requests or any other questions you may have.


The WACEL Online Testing Platform is now operational for Concrete I, Soil I Special Inspector, Foundation Special Inspector, Reinforced Concrete Special Inspector, Structural Concrete Special Inspector and Concrete Masonry Strength Lab exams.

To register your technicians for online exams, you must have supervisor status in the WACEL database. If you need supervisor status, email with the names and email address of those in your organization who should be designated as supervisors.  

Steps to register technicians for online exams:

  • Log on to the WACEL web site at
  • Click on the drop down menu on the TECHNICIAN CERTIFICATION PROGRAM tab underneath the WACEL logo on the landing page and click on online testing.
  • Click on the blue bar at the bottom of the page that says "Click here to register technicians".
  • If the technician you want to register has previously taken a WACEL certification exam while in your employ, his or her name should be listed under the select a person. If the tech has not previously taken an exam while in your employ fill in the first and last name in the appropriate fields. You must provide a valid email address for the technician and you also must provide a password that is at least six characters in length and one of the characters must be a number.  
  • You will note that there are options for Concrete I and Soil I.  Soil I will not be active until early next week.  If you select Soil I no exam will be assigned.
  • After you hit submit, an email is sent to WACEL to assign the exam as well as to the supervisor and the technician taking the exam. After WACEL assigns the exam, the exam will be available the following business day beginning at 7:00 am. If you register your technicians today, May 15 for Concrete I, the exam will be available from May 18-May 20 between the hours of 7am and 7pm. 
  • Technicians must take the exam at your office in an environment that follows CDC and local and state health official guidelines. 
  • After the technician completes the exam, a PE or designated supervisor must submit an application (attached) signed by the technician and supervisor and submitted to WACEL ( along with a photo of the technician and a photo of the technician’s government-issued identification (e.g. driver’s license). By signing the application both the PE/Supervisor and the technician certify that they followed online testing guidelines and that they did not compromise the integrity of the WACEL certification program. If you do not submit an application or the required photos, no certification will be issued.

Call us at 301-652-7925 or email with questions or if you need more information.

Certification and Accreditation Program Updates

WACEL is currently scheduling inspections and audits for the laboratory accreditation program. Call us at 301-652-7925 or email to schedule your inspection and/or audit.

  • WACEL Study Guides and videos demonstrating concrete testing are now available online. Click here to go to the Resources Section.

Wacel Directories

Upcoming Events

Register for meetings, training classes and practical exams, and keep up-to-date on the latest program updates and changes.

Soil Class

March 9, 2024
ABC - Virginia
42680 Trade W Drive
Sterling, VA 20166
8:30am – 5:00pm

Please note that the Soil Class does not include the Soil Practical


Concrete Class

Febraury 24, 2024
ABC - Virginia
42680 Trade W Drive
Sterling, VA 20166
8:30am – 5:00pm

Please note that the Concrete Class does not include the Concrete Practical


Concrete Practicals

February 13, 2024 SOLD OUT!
Vulcan Materials
5412 Industrial Drive
Springfield, VA

February 27, 2024
Vulcan Materials
5412 Industrial Drive
Springfield, VA

March 12, 2024
Vulcan Materials
5412 Industrial Drive
Springfield, VA

March 26, 2024
Vulcan Materials
5412 Industrial Drive
Springfield, VA

WACEL will also perform concrete, soil and MARTCP proficiency testing at member offices.  At least five technicians are required for an in-office practical

View All Events

WACEL Membership Meetings

Inspecting Wood Trusses and Installation

Thursday, Febraury 29, 2024, Maggiano's Tyson's Corner, 11am-1pm

Inspecting wood trusses and installation is the subject of the WACEL Thursday, February 29, 2024 General Membership Meeting.  Marvin Strzyzewski, PE, senior staff engineer, and a member of the building and product regulations team at Truss Engineering Company (a MiTek Inc. Affiliate) will discuss the following:

  • IBC, IRC and ANSI/Trust Plate Institute (TPI) material, load, connection, bracing and inspection requirements for designing and installing wood trusses.
  • Understanding specification requirements of metal plate connected roof and floor trusses.
  • How to read truss placement plans.
  • How to avoid and/or respond to job site “red flags.”
  • Special and other inspection requirements for wood trusses.
  • How to create and use an inspection checklist.
  • Requirements for truss repairs and design alterations.

Marvin Strzyzewski, PE has more than 40 years of experience in the wood truss industry.  He is an extremely active participant in the Trust Plate Institute’s efforts where he chairs the code review committee and has helped develop multiple versions of the National Standard for the Design of Metal Plate Connected Wood Trusses.  He also has been involved in the development of ICC code changes for the IRC-2023.  For decades, he has helped develop codes, standards and implementation practices for wood trusses.  

Register Now


WACEL Certification Program

WACEL certification or equivalent certification is required by all metropolitan area jurisdictions.

Find Certified Technicians

Register to take an exam


Accreditation Programs

WACEL membership requires that all laboratories in the WACEL service territory be accredited by WACEL or an equivalent accreditation program.

WACEL membership requires that all inspection agencies participate in an Inspection Agency Audit Program or an equivalent audit program.

Learn more about the laboratory accreditation program

Learn more about the inspection agency audit program


WACEL offers membership to Engineering Laboratories and Inspection Agencies that are directed and managed by full-time professional engineers.

Engineering Laboratories

Engineering Laboratories


Inspection Agencies

Inspection Agencies


Government Entities that Recognize WACEL Programs


Montgomery County

Prince George's County

Maryland State Highway Administration


Other Cities/States

State of New Jersey

City of Houston, Texas

Washington, D.C.


Arlington County

City of Alexandria

Culpeper County

Fairfax County

Fauquier County

Loudoun County

Prince William County

Stafford County

Spotsylvania County

Virginia Department of Transportation

Federal and Public Agencies

American Association of State Highway Transportation Officials (AASHTO)

Metropolitan Washington Airports Authority (MWAA)

Washington Metropolitan Area Transit Authority (WMATA)

Naval Engineering Facilities Command (NAVFAC) Chesapeak Division

Testing On Demand at WACEL HQ

7508 Wisconsin Avenue, 4th Floor, Bethesda, MD, 20814   |   Phone: 301-652-7925   |   Fax: 301-907-9326