Programs that work for you

"They are rigorous, they’re about making sure our labs, personnel, and test methods conform, that they’re in compliance. They’re independent, not driven by a vendor or a construction company.”

California Department of Transportation

Philip Stolarski, Deputy Division Chief, DES-METS & GS

50+ years of experience
PSP participants
samples shipped per year
laboratory assessments per year
accredited labs

Changes to Services Due to COVID-19

Frequently Asked Questions

Updated: March 25, 2020

We have received several questions about how we will handle certain issues that arise from interruptions in service during this pandemic. The following are the most common questions we have received and our answers at this time.

Show everything
Is AASHTO re:source staff available for calls and email responses?
Yes. All AASHTO re:source staff are currently working from home, but those caring for dependents or experiencing challenges working from home may not be immediately available. Responses to questions should occur within two business days.
How long will the AASHTO Accreditation Program (AAP) extend deadlines?
We have currently extended AAP deadlines by 30 days, but our management team continues to regularly monitor the COVID-19 situation and its impact on our customers to determine whether further extensions of the deadlines will be needed.
For how long will on-site laboratory assessments be postponed?
We are monitoring the situation, and once it is safe to resume travel, we will inform our customers to provide as much notice as possible.
Will our laboratory be given leniency on missing technician certifications?
Below are a few scenarios related to certification provider delays and the ramifications for AASHTO re:source assessment reports and AASHTO Accreditation.

  • The certifications became recently expired around the time of the COVID-19 outbreak, and they were still expired at the time of the assessment: The AASHTO re:source assessment report will include a nonconformity that will be tracked by the AASHTO Accreditation Program (AAP). The AAP will be lenient about the deadline in these cases in line with the certification provider’s availability. Accreditation will remain in good standing, provided the laboratory resolves this situation in a timely manner.

  • The laboratory provided no evidence that indicated its staff maintained the required certifications at any recent time: The AASHTO re:source assessment report will include a nonconformity that will be tracked by the AAP. Accreditations will not be granted for any standards requiring certifications, and accreditations will be withdrawn where appropriate.

  • The laboratory is unable to obtain external certifications but will be creating its own internal program in the meantime: The laboratory can proceed with the AAP’s established procedures for evaluation of internal examination programs. Program requirements are located on the AASHTO Accreditation Documents page of the AASHTO re:source website. Accreditation will not be available for ASTM D3666 if the laboratory pursues internal examination because these standards require external certifications. ASTM E329 also requires external certifications or a PE license for the laboratory supervisor position.
If we missed an interval due to our calibration provider not being able to travel to visit our laboratory, will that be noted in the next on-site assessment report?
Below are a few scenarios related to calibration provider delaysand the ramifications for the AASHTO re:source assessment report and AASHTO Accreditation.

  • The equipment calibration was overdue at the time of the assessment: The AASHTO re:source report will include a nonconformity that will be tracked by the AASHTO Accreditation Program (AAP). The AAP will be lenient about the deadline in these cases in line with the calibration provider’s availability.

  • The equipment calibration was completed before the assessment, but the interval was greater than is permitted in the standards: An Observation will be reported. No corrective action report will be required.

  • The laboratory had never had its equipment calibrated and is requesting accreditation for the first time: Accreditation will not be granted in these cases until the proper calibrations have been carried out.
Are extra proficiency samples (including blind samples) still available?
At this time, we are not shipping any extra samples. When staff members return to the office, we will resume shipments of samples. This means proficiency sample-related accreditation suspensions will not be resolved as quickly as usual.
We normally conduct management reviews and internal audits in person with people from different parts of the country. Are we able to carry those activities out remotely?
We do not have any concerns if you are able to accomplish these tasks effectively while working remotely. The program requirements would remain unchanged.
Was the Technical Exchange for 2020 cancelled or postponed until later?
The 2020 Technical Exchange scheduled for March 23-26 in Minneapolis has been cancelled. The next Technical Exchange will be in Fort Worth, Texas on March 15-18, 2021.
I don't see the answer to my question. Can I ask a new question?
Yes, you can. Send us your question.


March 13, 2020 

The health and safety of our customers, staff, and communities are of utmost importance to AASHTO.  After careful consideration, the following changes will be made to our programs effective Monday, March 16, 2020.

On-Site Assessments
All on-site laboratory assessments are suspended until further notice.  Customers who currently have assessments scheduled will receive a phone call from our office to confirm receipt of this message.  We will continue to monitor the situation to determine when we can resume on-site assessments.  Questions regarding your upcoming assessment can be directed to Laboratory Assessment Program Manager, Maria Knake at or 240-436-4804.

AASHTO Accreditation
The AASHTO Accreditation Program will add 30 days to the deadlines of any open accreditation events.  Questions regarding how this further impacts your laboratory’s accreditation can be directed to AASHTO Accreditation Program Manager, Brian Johnson at or 240-436-4820.

Proficiency Samples
The deadlines for submitting data for the following proficiency samples have been extended for 28 days:

  • Fine Aggregate 207/208: April 24, 2020
  • Soil Classification and Compaction 181/182: May 14, 2020
  • Viscosity Graded Asphalt Cement 259/260: May 21, 2020
  • Performance Graded Asphalt Binder 259/260: May 28, 2020

Specific questions regarding these changes can be directed to Proficiency Sample Program Manager, John Malusky at or 240-436-4825.

2020 AASHTO re:source Technical Exchange (March 23-26)
This event has been canceled. More details can be found on the event site. 

Future Actions
AASHTO will continue to monitor this situation closely and will update customers with any further changes to our services.  Please contact AASHTO re:source Manager, Bob Lutz at or 240-436-4801 or CMRL Director, Steve Lenker at or 240-436-4770 with any questions or concerns.

Thank you for your support and understanding as we navigate this fluid and multi-faceted situation.