AASHTO-M147 Complete Document History
Standard Specification for Materials for Aggregate and Soil-Aggregate Subbase, Base, and Surface Courses

Complete Current Edition:
   2017 R21 EDITION - REAPPROVED IN 2021 - PDF FORMAT EDITION - Jan. 1, 2021

Obsolete Revision Information:
   2017 EDITION - Standard Specification for Materials for Aggregate and Soil-Aggregate Subbase, Base, and Surface Courses - Jan. 1, 2017
   DOD ADOPTION 1 - FYI ONLY: DOD ADOPTED - Sept. 3, 2004
   2004 EDITION - MATERIALS FOR AGGREGATE & SOIL-AGGREGATE SUBBASE, BASE, & SU - Jan. 1, 2004