4 days ago · The American Association of State Highway and Transportation Officials – is a nonprofit, nonpartisan association representing highway and transportation departments in the …

The American Association of State Highway and Transportation Officials (AASHTO) is a standards setting body which publishes specifications, test protocols, and guidelines that are …

Aug 6, 2025 · American Association of Highway and Transportation Officials (AASHTO) is a nonprofit association that represents highway and transportation departments across the …

AASHTO is a nonprofit, nonpartisan association representing highway and transportation departments in the 50 states, the District of Columbia, and Puerto Rico. It represents all …

The AASHTO Accreditation Program formally recognized the competence of over 1,800 testing laboratories to perform specific tests on construction materials, enhancing customer confidence.

AASHTO provides our members with smart solutions in transportation. As an AASHTO member you are invited to utilize our critical information, training, and data. AASHTO offers direct …

The AASHTO Accreditation Program (AAP) formally recognizes the competency of thousands of testing laboratories to perform specific tests on construction materials. In addition to being the …

The AASHTO Online Store. AASHTO technical standards, design and construction specifications and guides for the construction, design, and maintenance of transportation infrastructure.

AASHTO and its member state departments of transportation (DOTs) have a long and respected history of leadership, working together to ensure a safe, sustainable, multi-modal …

AASHTO is a nonprofit, nonpartisan association representing highway and transportation departments in the 50 states, the District of Columbia, and Puerto Rico. It represents all …