The Greenbook
Origin and Adoption
The "Greenbook" emerged in 1967, born from exhaustive collaboration involving a 400-person task force known as the Joint Cooperative Committee. Key contributors, including the City and County of Los Angeles, paved the way for its adoption as the standard for public works construction specifications. Over 200 cities, counties, and agencies followed suit, embracing the Greenbook as their guiding document.
Global Influence
and Evolution
The Greenbook garnered global attention, drawing interest from public works officials in the US, Canada, and beyond. To adapt to technological advancements, a Joint Committee, comprising representatives from various sectors in Southern California, undertook the task of studying and updating specifications.
Transition and Continuous Improvement
In 1995, the Joint Committee ended, prompting the establishment of Public Works Standards, Inc. the following year to produce the Greenbook. A 25-member Greenbook Committee, appointed by a diverse Board of Directors, continued the mission of the original committee. Regular meetings ensured updates and amendments, keeping the document relevant and adaptable.
Structure and Purpose
Initially comprising three parts, the Greenbook expanded over the years to include specifications for alternate aggregate materials, pipeline system rehabilitation, and modified asphalt products. Designed to promote uniformity and competitive bidding in public works construction, the Greenbook serves as a comprehensive guide, outlining specifications with general applicability.
