Your lab’s personal performance dashboard

"We think it’s a good value because the audit, the recognition and the hands-on real time demonstrations that you get from their people. They are good at putting techs at ease."

Bowser-Morner, Inc.

Jim Fletcher, Vice President, Director of Laboratory Services Construction Services Division

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

Estimated Assessment Schedule

Important Announcement Regarding
Changes to AASHTO re:source Services Due to COVID-19

As of July 1, 2020, AASHTO re:souce is conducting remote assessments for all customers as part of our regular tour schedule.  Please note this is not a permanent change to our services; we will resume on-site assessments as soon as it is safe to do so. Visit the Remote Assessments page for more details on this service.

For details on the scheduling process and procedure, please review the AASHTO Accreditation Program Policy and Guidance on Requesting and Receiving In-Sequence Assessments From AASHTO re:source.

LAP Schedule 7.14.21
Active Remote Assessment Regions 

As of July 14, 2021

  • Alabama
  • Arizona
  • California (northern region)
  • Colorado
  • Georgia
  • Kansas
  • Louisiana
  • Mississippi
  • New Mexico
  • North Carolina
  • Oklahoma
  • Pennsylvania
  • Texas
  • Utah
Upcoming Remote Assessment Regions

As of July 14, 2021

  • Alaska
  • Idaho
  • Nevada
  • Puerto Rico
  • Wyoming

Laboratories that are due for an assessment soon will receive an email when it is time to submit an assessment request. Laboratories will be given 4-6 weeks notice before the date of their assessment.

Please direct any scheduling questions to

If you do not see your state listed here, we have completed assessments in your area and/or do not anticipate starting assessments within the next 6 months.  You may require an out-of-sequence assessment.  Please submit a request or email for additional guidance. 

If your need for an assessment is time-sensitive, please contact us, even if the schedule indicates that we will be in your area by the time you require our services.

For more information on preparing for your assessment, please review Seven Steps for a "Perfect" On-Site Assessment.